diff --git a/Changelog.md b/Changelog.md
index 31c31c047..74cb5af85 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,3 +1,9 @@
+# v0.11.31 2024-03-14
+
+* [#1428](https://github.com/mbj/mutant/pull/1428)
+
+  Improve rspec integration. Mutant now properly exits early if rspec cannot load examples.
+
 # v0.11.30 2024-03-11
 
 * [#1427](https://github.com/mbj/mutant/pull/1427)
diff --git a/lib/mutant/integration/rspec.rb b/lib/mutant/integration/rspec.rb
index a0ebac61d..662bf2b3b 100644
--- a/lib/mutant/integration/rspec.rb
+++ b/lib/mutant/integration/rspec.rb
@@ -50,7 +50,7 @@ def initialize(*)
       def setup
         @setup_elapsed = timer.elapsed do
           @runner.setup(world.stderr, world.stdout)
-          fail 'Rspec setup failure' if RSpec.world.respond_to?(:rspec_is_quitting) && RSpec.world.rspec_is_quitting
+          fail 'Rspec setup failure' if @rspec_world.wants_to_quit
           example_group_map
         end
         @runner.configuration.force(color_mode: :on)
diff --git a/scripts/devloop.sh b/scripts/devloop.sh
index 48c839274..5176252b5 100755
--- a/scripts/devloop.sh
+++ b/scripts/devloop.sh
@@ -1,5 +1,5 @@
 while inotifywait lib/**/*.rb meta/**/*.rb spec/**/*.rb Gemfile Gemfile.shared mutant.gemspec; do
-  bundle exec mutant environment test run --fail-fast spec/unit \
+  bundle exec mutant environment test run --fail-fast spec/unit spec/integration/mutant/rspec_spec.rb \
     && bundle exec mutant run --fail-fast --since main --zombie -- 'Mutant*' \
     && bundle exec rubocop
 done
diff --git a/spec/integration/mutant/rspec_spec.rb b/spec/integration/mutant/rspec_spec.rb
index 7567debc5..7544bffb5 100644
--- a/spec/integration/mutant/rspec_spec.rb
+++ b/spec/integration/mutant/rspec_spec.rb
@@ -5,11 +5,23 @@
     %w[bundle exec mutant run -I lib --require test_app --integration rspec]
   end
 
-  %w[3.8].each do |version|
+  %w[3.8 3.9 3.10 3.11 3.12 3.13].each do |version|
     context "RSpec #{version}" do
       let(:gemfile) { "Gemfile.rspec#{version}" }
 
       it_behaves_like 'framework integration'
+
+      it 'handles invalid rspec' do
+        Dir.chdir('test_app') do
+          result = Kernel.system(
+            { 'BUNDLE_GEMFILE' => gemfile },
+            *%w[bundle exec mutant environment test run --integration rspec -- --backtrace
+                spec/unit/test_app/invalid.rb]
+          )
+
+          expect(result).to be(false)
+        end
+      end
     end
   end
 end
diff --git a/spec/unit/mutant/integration/rspec_spec.rb b/spec/unit/mutant/integration/rspec_spec.rb
index 71adf77e3..77d1d58e4 100644
--- a/spec/unit/mutant/integration/rspec_spec.rb
+++ b/spec/unit/mutant/integration/rspec_spec.rb
@@ -17,7 +17,7 @@
   let(:rspec_options)         { instance_double(RSpec::Core::ConfigurationOptions) }
   let(:rspec_runner)          { instance_double(RSpec::Core::Runner)               }
   let(:world)                 { fake_world                                         }
-  let(:rspec_is_quitting)     { false                                              }
+  let(:wants_to_quit)         { false                                              }
 
   let(:example_a) do
     double(
@@ -115,7 +115,7 @@
       example_groups:         example_groups,
       filtered_examples:      filtered_examples,
       ordered_example_groups: ordered_example_groups,
-      rspec_is_quitting:      rspec_is_quitting
+      wants_to_quit:          wants_to_quit
     )
   end
 
diff --git a/test_app/Gemfile.rspec3.10 b/test_app/Gemfile.rspec3.10
new file mode 100644
index 000000000..dc6203184
--- /dev/null
+++ b/test_app/Gemfile.rspec3.10
@@ -0,0 +1,7 @@
+source 'https://rubygems.org'
+gem 'rspec',      '~> 3.10'
+gem 'rspec-core', '~> 3.10'
+gem 'mutant',       path: '../'
+gem 'mutant-rspec', path: '../'
+gem 'adamantium'
+eval_gemfile File.expand_path('../../Gemfile.shared', __FILE__)
diff --git a/test_app/Gemfile.rspec3.10.lock b/test_app/Gemfile.rspec3.10.lock
new file mode 100644
index 000000000..382ef128e
--- /dev/null
+++ b/test_app/Gemfile.rspec3.10.lock
@@ -0,0 +1,66 @@
+PATH
+  remote: ..
+  specs:
+    mutant (0.11.30)
+      diff-lcs (~> 1.3)
+      parser (~> 3.3.0)
+      regexp_parser (~> 2.9.0)
+      sorbet-runtime (~> 0.5.0)
+      unparser (~> 0.6.9)
+    mutant-rspec (0.11.30)
+      mutant (= 0.11.30)
+      rspec-core (>= 3.8.0, < 4.0.0)
+
+GEM
+  remote: https://oss:Px2ENN7S91OmWaD5G7MIQJi1dmtmYrEh@gem.mutant.dev/
+  specs:
+    mutant-license (0.1.1.2.2355046999240944981729280251890364410689.5)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    adamantium (0.2.0)
+      ice_nine (~> 0.11.0)
+      memoizable (~> 0.4.0)
+    ast (2.4.2)
+    diff-lcs (1.5.1)
+    ice_nine (0.11.2)
+    memoizable (0.4.2)
+      thread_safe (~> 0.3, >= 0.3.1)
+    parser (3.3.0.5)
+      ast (~> 2.4.1)
+      racc
+    racc (1.7.3)
+    regexp_parser (2.9.0)
+    rspec (3.13.0)
+      rspec-core (~> 3.13.0)
+      rspec-expectations (~> 3.13.0)
+      rspec-mocks (~> 3.13.0)
+    rspec-core (3.13.0)
+      rspec-support (~> 3.13.0)
+    rspec-expectations (3.13.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-mocks (3.13.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-support (3.13.1)
+    sorbet-runtime (0.5.11292)
+    thread_safe (0.3.6)
+    unparser (0.6.13)
+      diff-lcs (~> 1.3)
+      parser (>= 3.3.0)
+
+PLATFORMS
+  x86_64-linux
+
+DEPENDENCIES
+  adamantium
+  mutant!
+  mutant-license!
+  mutant-rspec!
+  rspec (~> 3.10)
+  rspec-core (~> 3.10)
+
+BUNDLED WITH
+   2.5.6
diff --git a/test_app/Gemfile.rspec3.11 b/test_app/Gemfile.rspec3.11
new file mode 100644
index 000000000..db6b5a6ad
--- /dev/null
+++ b/test_app/Gemfile.rspec3.11
@@ -0,0 +1,7 @@
+source 'https://rubygems.org'
+gem 'rspec',      '~> 3.12'
+gem 'rspec-core', '~> 3.12'
+gem 'mutant',       path: '../'
+gem 'mutant-rspec', path: '../'
+gem 'adamantium'
+eval_gemfile File.expand_path('../../Gemfile.shared', __FILE__)
diff --git a/test_app/Gemfile.rspec3.11.lock b/test_app/Gemfile.rspec3.11.lock
new file mode 100644
index 000000000..59c5dfe66
--- /dev/null
+++ b/test_app/Gemfile.rspec3.11.lock
@@ -0,0 +1,66 @@
+PATH
+  remote: ..
+  specs:
+    mutant (0.11.30)
+      diff-lcs (~> 1.3)
+      parser (~> 3.3.0)
+      regexp_parser (~> 2.9.0)
+      sorbet-runtime (~> 0.5.0)
+      unparser (~> 0.6.9)
+    mutant-rspec (0.11.30)
+      mutant (= 0.11.30)
+      rspec-core (>= 3.8.0, < 4.0.0)
+
+GEM
+  remote: https://oss:Px2ENN7S91OmWaD5G7MIQJi1dmtmYrEh@gem.mutant.dev/
+  specs:
+    mutant-license (0.1.1.2.2355046999240944981729280251890364410689.5)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    adamantium (0.2.0)
+      ice_nine (~> 0.11.0)
+      memoizable (~> 0.4.0)
+    ast (2.4.2)
+    diff-lcs (1.5.1)
+    ice_nine (0.11.2)
+    memoizable (0.4.2)
+      thread_safe (~> 0.3, >= 0.3.1)
+    parser (3.3.0.5)
+      ast (~> 2.4.1)
+      racc
+    racc (1.7.3)
+    regexp_parser (2.9.0)
+    rspec (3.13.0)
+      rspec-core (~> 3.13.0)
+      rspec-expectations (~> 3.13.0)
+      rspec-mocks (~> 3.13.0)
+    rspec-core (3.13.0)
+      rspec-support (~> 3.13.0)
+    rspec-expectations (3.13.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-mocks (3.13.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-support (3.13.1)
+    sorbet-runtime (0.5.11292)
+    thread_safe (0.3.6)
+    unparser (0.6.13)
+      diff-lcs (~> 1.3)
+      parser (>= 3.3.0)
+
+PLATFORMS
+  x86_64-linux
+
+DEPENDENCIES
+  adamantium
+  mutant!
+  mutant-license!
+  mutant-rspec!
+  rspec (~> 3.12)
+  rspec-core (~> 3.12)
+
+BUNDLED WITH
+   2.5.6
diff --git a/test_app/Gemfile.rspec3.12 b/test_app/Gemfile.rspec3.12
new file mode 100644
index 000000000..1b036a979
--- /dev/null
+++ b/test_app/Gemfile.rspec3.12
@@ -0,0 +1,7 @@
+source 'https://rubygems.org'
+gem 'rspec',      '~> 3.9'
+gem 'rspec-core', '~> 3.9'
+gem 'mutant',       path: '../'
+gem 'mutant-rspec', path: '../'
+gem 'adamantium'
+eval_gemfile File.expand_path('../../Gemfile.shared', __FILE__)
diff --git a/test_app/Gemfile.rspec3.12.lock b/test_app/Gemfile.rspec3.12.lock
new file mode 100644
index 000000000..d3983207b
--- /dev/null
+++ b/test_app/Gemfile.rspec3.12.lock
@@ -0,0 +1,66 @@
+PATH
+  remote: ..
+  specs:
+    mutant (0.11.30)
+      diff-lcs (~> 1.3)
+      parser (~> 3.3.0)
+      regexp_parser (~> 2.9.0)
+      sorbet-runtime (~> 0.5.0)
+      unparser (~> 0.6.9)
+    mutant-rspec (0.11.30)
+      mutant (= 0.11.30)
+      rspec-core (>= 3.8.0, < 4.0.0)
+
+GEM
+  remote: https://oss:Px2ENN7S91OmWaD5G7MIQJi1dmtmYrEh@gem.mutant.dev/
+  specs:
+    mutant-license (0.1.1.2.2355046999240944981729280251890364410689.5)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    adamantium (0.2.0)
+      ice_nine (~> 0.11.0)
+      memoizable (~> 0.4.0)
+    ast (2.4.2)
+    diff-lcs (1.5.1)
+    ice_nine (0.11.2)
+    memoizable (0.4.2)
+      thread_safe (~> 0.3, >= 0.3.1)
+    parser (3.3.0.5)
+      ast (~> 2.4.1)
+      racc
+    racc (1.7.3)
+    regexp_parser (2.9.0)
+    rspec (3.13.0)
+      rspec-core (~> 3.13.0)
+      rspec-expectations (~> 3.13.0)
+      rspec-mocks (~> 3.13.0)
+    rspec-core (3.13.0)
+      rspec-support (~> 3.13.0)
+    rspec-expectations (3.13.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-mocks (3.13.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-support (3.13.1)
+    sorbet-runtime (0.5.11292)
+    thread_safe (0.3.6)
+    unparser (0.6.13)
+      diff-lcs (~> 1.3)
+      parser (>= 3.3.0)
+
+PLATFORMS
+  x86_64-linux
+
+DEPENDENCIES
+  adamantium
+  mutant!
+  mutant-license!
+  mutant-rspec!
+  rspec (~> 3.9)
+  rspec-core (~> 3.9)
+
+BUNDLED WITH
+   2.5.6
diff --git a/test_app/Gemfile.rspec3.13 b/test_app/Gemfile.rspec3.13
new file mode 100644
index 000000000..b7f29f010
--- /dev/null
+++ b/test_app/Gemfile.rspec3.13
@@ -0,0 +1,7 @@
+source 'https://rubygems.org'
+gem 'rspec',      '~> 3.13'
+gem 'rspec-core', '~> 3.13'
+gem 'mutant',       path: '../'
+gem 'mutant-rspec', path: '../'
+gem 'adamantium'
+eval_gemfile File.expand_path('../../Gemfile.shared', __FILE__)
diff --git a/test_app/Gemfile.rspec3.13.lock b/test_app/Gemfile.rspec3.13.lock
new file mode 100644
index 000000000..a97d1a5b8
--- /dev/null
+++ b/test_app/Gemfile.rspec3.13.lock
@@ -0,0 +1,66 @@
+PATH
+  remote: ..
+  specs:
+    mutant (0.11.30)
+      diff-lcs (~> 1.3)
+      parser (~> 3.3.0)
+      regexp_parser (~> 2.9.0)
+      sorbet-runtime (~> 0.5.0)
+      unparser (~> 0.6.9)
+    mutant-rspec (0.11.30)
+      mutant (= 0.11.30)
+      rspec-core (>= 3.8.0, < 4.0.0)
+
+GEM
+  remote: https://oss:Px2ENN7S91OmWaD5G7MIQJi1dmtmYrEh@gem.mutant.dev/
+  specs:
+    mutant-license (0.1.1.2.2355046999240944981729280251890364410689.5)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    adamantium (0.2.0)
+      ice_nine (~> 0.11.0)
+      memoizable (~> 0.4.0)
+    ast (2.4.2)
+    diff-lcs (1.5.1)
+    ice_nine (0.11.2)
+    memoizable (0.4.2)
+      thread_safe (~> 0.3, >= 0.3.1)
+    parser (3.3.0.5)
+      ast (~> 2.4.1)
+      racc
+    racc (1.7.3)
+    regexp_parser (2.9.0)
+    rspec (3.13.0)
+      rspec-core (~> 3.13.0)
+      rspec-expectations (~> 3.13.0)
+      rspec-mocks (~> 3.13.0)
+    rspec-core (3.13.0)
+      rspec-support (~> 3.13.0)
+    rspec-expectations (3.13.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-mocks (3.13.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-support (3.13.1)
+    sorbet-runtime (0.5.11292)
+    thread_safe (0.3.6)
+    unparser (0.6.13)
+      diff-lcs (~> 1.3)
+      parser (>= 3.3.0)
+
+PLATFORMS
+  x86_64-linux
+
+DEPENDENCIES
+  adamantium
+  mutant!
+  mutant-license!
+  mutant-rspec!
+  rspec (~> 3.13)
+  rspec-core (~> 3.13)
+
+BUNDLED WITH
+   2.5.6
diff --git a/test_app/Gemfile.rspec3.8 b/test_app/Gemfile.rspec3.8
index 85bee6240..71b933c34 100644
--- a/test_app/Gemfile.rspec3.8
+++ b/test_app/Gemfile.rspec3.8
@@ -1,6 +1,6 @@
 source 'https://rubygems.org'
-gem 'rspec',      '~> 3.8.0'
-gem 'rspec-core', '~> 3.8.0'
+gem 'rspec',      '~> 3.8'
+gem 'rspec-core', '~> 3.8'
 gem 'mutant',       path: '../'
 gem 'mutant-rspec', path: '../'
 gem 'adamantium'
diff --git a/test_app/Gemfile.rspec3.8.lock b/test_app/Gemfile.rspec3.8.lock
index e6ae970bd..395897bcc 100644
--- a/test_app/Gemfile.rspec3.8.lock
+++ b/test_app/Gemfile.rspec3.8.lock
@@ -59,8 +59,8 @@ DEPENDENCIES
   mutant!
   mutant-license!
   mutant-rspec!
-  rspec (~> 3.8.0)
-  rspec-core (~> 3.8.0)
+  rspec (~> 3.8)
+  rspec-core (~> 3.8)
 
 BUNDLED WITH
    2.4.2
diff --git a/test_app/Gemfile.rspec3.9 b/test_app/Gemfile.rspec3.9
new file mode 100644
index 000000000..1b036a979
--- /dev/null
+++ b/test_app/Gemfile.rspec3.9
@@ -0,0 +1,7 @@
+source 'https://rubygems.org'
+gem 'rspec',      '~> 3.9'
+gem 'rspec-core', '~> 3.9'
+gem 'mutant',       path: '../'
+gem 'mutant-rspec', path: '../'
+gem 'adamantium'
+eval_gemfile File.expand_path('../../Gemfile.shared', __FILE__)
diff --git a/test_app/Gemfile.rspec3.9.lock b/test_app/Gemfile.rspec3.9.lock
new file mode 100644
index 000000000..d3983207b
--- /dev/null
+++ b/test_app/Gemfile.rspec3.9.lock
@@ -0,0 +1,66 @@
+PATH
+  remote: ..
+  specs:
+    mutant (0.11.30)
+      diff-lcs (~> 1.3)
+      parser (~> 3.3.0)
+      regexp_parser (~> 2.9.0)
+      sorbet-runtime (~> 0.5.0)
+      unparser (~> 0.6.9)
+    mutant-rspec (0.11.30)
+      mutant (= 0.11.30)
+      rspec-core (>= 3.8.0, < 4.0.0)
+
+GEM
+  remote: https://oss:Px2ENN7S91OmWaD5G7MIQJi1dmtmYrEh@gem.mutant.dev/
+  specs:
+    mutant-license (0.1.1.2.2355046999240944981729280251890364410689.5)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    adamantium (0.2.0)
+      ice_nine (~> 0.11.0)
+      memoizable (~> 0.4.0)
+    ast (2.4.2)
+    diff-lcs (1.5.1)
+    ice_nine (0.11.2)
+    memoizable (0.4.2)
+      thread_safe (~> 0.3, >= 0.3.1)
+    parser (3.3.0.5)
+      ast (~> 2.4.1)
+      racc
+    racc (1.7.3)
+    regexp_parser (2.9.0)
+    rspec (3.13.0)
+      rspec-core (~> 3.13.0)
+      rspec-expectations (~> 3.13.0)
+      rspec-mocks (~> 3.13.0)
+    rspec-core (3.13.0)
+      rspec-support (~> 3.13.0)
+    rspec-expectations (3.13.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-mocks (3.13.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-support (3.13.1)
+    sorbet-runtime (0.5.11292)
+    thread_safe (0.3.6)
+    unparser (0.6.13)
+      diff-lcs (~> 1.3)
+      parser (>= 3.3.0)
+
+PLATFORMS
+  x86_64-linux
+
+DEPENDENCIES
+  adamantium
+  mutant!
+  mutant-license!
+  mutant-rspec!
+  rspec (~> 3.9)
+  rspec-core (~> 3.9)
+
+BUNDLED WITH
+   2.5.6
diff --git a/test_app/spec/unit/test_app/invalid.rb b/test_app/spec/unit/test_app/invalid.rb
new file mode 100644
index 000000000..9dae856c3
--- /dev/null
+++ b/test_app/spec/unit/test_app/invalid.rb
@@ -0,0 +1 @@
+fail