diff --git a/Model/IWhen.cs b/Model/IWhen.cs
index e5f45a8..9b48372 100644
--- a/Model/IWhen.cs
+++ b/Model/IWhen.cs
@@ -11,8 +11,7 @@ public interface IWhen {
     bool IsValid(Plugin plugin);
 }
 
-public class WhenNodeDeserialiser : INodeDeserializer
-{
+public class WhenNodeDeserialiser : INodeDeserializer {
     public bool Deserialize(IParser reader, Type expectedType, Func<IParser, Type, object?> nestedObjectDeserializer, out object? value) {
         if (expectedType != typeof(IWhen)) {
             value = null;
diff --git a/Plugin.cs b/Plugin.cs
index 153e907..a879cfb 100644
--- a/Plugin.cs
+++ b/Plugin.cs
@@ -25,9 +25,10 @@ public class Plugin : IDalamudPlugin {
     private Dictionary<(string, bool), nint> ReplacementPointers { get; } = [];
     private SemaphoreSlim Mutex { get; } = new(1, 1);
 
-    internal static IDeserializer Deserializer { get; } = new DeserializerBuilder()
+    private static IDeserializer Deserializer { get; } = new DeserializerBuilder()
         .WithNamingConvention(UnderscoredNamingConvention.Instance)
         .WithNodeDeserializer(new WhenNodeDeserialiser())
+        .IgnoreUnmatchedProperties()
         .Build();
 
     private static class Signatures {
@@ -149,5 +150,11 @@ public class Plugin : IDalamudPlugin {
 
 [Serializable]
 internal class DataFile {
+    public Definitions Definitions { get; init; }
     public Replacement[] Replacements { get; init; }
 }
+
+[Serializable]
+public class Definitions {
+    public Dictionary<string, uint> Quests { get; init; }
+}
diff --git a/replacements.yaml b/replacements.yaml
index 1865bcc..9a7d36e 100644
--- a/replacements.yaml
+++ b/replacements.yaml
@@ -1,10 +1,23 @@
+definitions:
+  quests:
+    patch2.0: &patch2.0 70058
+
 replacements:
   # Original: Just what we need. Another outsider.
   - id: 22
     when:
       - quest:
-          id: 70058 # final msq for A Realm Reborn
+          id: *patch2.0 # final msq for A Realm Reborn
           status: complete
           text: |-
-            It's been
-            quiet lately.
+            The water here
+            is so peaceful.
+  # Original: Start any trouble, and I'll see you rot in the oubliettes for eternity.
+  - id: 291
+    when:
+      - quest:
+          id: *patch2.0
+          status: complete
+          text: |-
+            My eyes are peeled
+            for trouble.