diff --git a/CHANGES b/CHANGES
index 1222172a7..3339ed90c 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,5 +1,8 @@
 Changes for SVN top of tree:
 
+Make event_xxx invisible, avoids many issues in the object handling
+routines.
+---
 Start splitting server/lib/treasures file in many files.
 Rename player class files/random items for coherence.
 Nicolas Weeger 2007-03-17
diff --git a/system/event_apply.arc b/system/event_apply.arc
index fcb2570be..e06913080 100644
--- a/system/event_apply.arc
+++ b/system/event_apply.arc
@@ -1,4 +1,5 @@
 Object event_apply
 type 116
 subtype 1
+invisible 1
 end
diff --git a/system/event_attack.arc b/system/event_attack.arc
index 7a74c660f..34318f223 100644
--- a/system/event_attack.arc
+++ b/system/event_attack.arc
@@ -1,4 +1,5 @@
 Object event_attack
 type 116
 subtype 2
+invisible 1
 end
diff --git a/system/event_close.arc b/system/event_close.arc
index 504ae6482..09f474616 100644
--- a/system/event_close.arc
+++ b/system/event_close.arc
@@ -1,4 +1,5 @@
 Object event_close
 type 116
 subtype 11
+invisible 1
 end
diff --git a/system/event_death.arc b/system/event_death.arc
index 486ead865..4cab2a7be 100644
--- a/system/event_death.arc
+++ b/system/event_death.arc
@@ -1,4 +1,5 @@
 Object event_death
 type 116
 subtype 3
+invisible 1
 end
diff --git a/system/event_destroy.arc b/system/event_destroy.arc
index 817290e03..becda57f8 100644
--- a/system/event_destroy.arc
+++ b/system/event_destroy.arc
@@ -1,4 +1,5 @@
 Object event_destroy
 type 116
 subtype 13
+invisible 1
 end
diff --git a/system/event_drop.arc b/system/event_drop.arc
index 5ab916ecc..e208a8b34 100644
--- a/system/event_drop.arc
+++ b/system/event_drop.arc
@@ -1,4 +1,5 @@
 Object event_drop
 type 116
 subtype 4
+invisible 1
 end
diff --git a/system/event_pickup.arc b/system/event_pickup.arc
index ce1920281..ba125dfb2 100644
--- a/system/event_pickup.arc
+++ b/system/event_pickup.arc
@@ -1,4 +1,5 @@
 Object event_pickup
 type 116
 subtype 5
+invisible 1
 end
diff --git a/system/event_say.arc b/system/event_say.arc
index 845292edd..c7e7d075a 100644
--- a/system/event_say.arc
+++ b/system/event_say.arc
@@ -1,4 +1,5 @@
 Object event_say
 type 116
 subtype 6
+invisible 1
 end
diff --git a/system/event_stop.arc b/system/event_stop.arc
index 7ccab672a..a6893acee 100644
--- a/system/event_stop.arc
+++ b/system/event_stop.arc
@@ -1,4 +1,5 @@
 Object event_stop
 type 116
 subtype 7
+invisible 1
 end
diff --git a/system/event_throw.arc b/system/event_throw.arc
index 1adea370f..5134742fb 100644
--- a/system/event_throw.arc
+++ b/system/event_throw.arc
@@ -1,4 +1,5 @@
 Object event_throw
 type 116
 subtype 9
+invisible 1
 end
diff --git a/system/event_time.arc b/system/event_time.arc
index a91594415..b4771d2fb 100644
--- a/system/event_time.arc
+++ b/system/event_time.arc
@@ -1,4 +1,5 @@
 Object event_time
 type 116
 subtype 8
+invisible 1
 end
diff --git a/system/event_timer.arc b/system/event_timer.arc
index ff377ca78..569f345be 100644
--- a/system/event_timer.arc
+++ b/system/event_timer.arc
@@ -1,4 +1,5 @@
 Object event_timer
 type 116
 subtype 12
+invisible 1
 end
diff --git a/system/event_trigger.arc b/system/event_trigger.arc
index 023027671..316ac50b3 100644
--- a/system/event_trigger.arc
+++ b/system/event_trigger.arc
@@ -1,4 +1,5 @@
 Object event_trigger
 type 116
 subtype 10
+invisible 1
 end