diff --git a/TensionUniverse/Chronicles/TU-CH06_QuantumObserver__story_en.md b/TensionUniverse/Chronicles/TU-CH05_QuantumObserver__story_en.md
similarity index 99%
rename from TensionUniverse/Chronicles/TU-CH06_QuantumObserver__story_en.md
rename to TensionUniverse/Chronicles/TU-CH05_QuantumObserver__story_en.md
index 2fe9018e..8129291b 100644
--- a/TensionUniverse/Chronicles/TU-CH06_QuantumObserver__story_en.md
+++ b/TensionUniverse/Chronicles/TU-CH05_QuantumObserver__story_en.md
@@ -1,4 +1,4 @@
-# TU-CH06 · Quantum Futures & the Observer  
+# TU-CH05 · Quantum Futures & the Observer  
 *Story · English · TensionUniverse Chronicles*
 
 > This is speculative science fiction, not a proven physical theory.