diff --git a/doc/lfun/catch_msg b/doc/lfun/catch_msg
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index 0000000..3bf09c9
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+++ b/doc/lfun/catch_msg
@@ -0,0 +1,15 @@
+catch_msg()
+
+SYNOPSIS:
+    void catch_msg(mixed *arr, object obj)
+
+DESCRIPTION:
+    When say(), tell_object()  or tell_room() are used with an array 
+    as message, the array will be passed to catch_message() in all living
+    objects that can hear it, instead of writing to the user resp.
+    sending to catch_tell(). This can be used to implement
+    communication protocols between livings. The second denotes
+    the object that has sent the message.
+
+SEE ALSO:
+ say(E), tell_room(E), tell_object(E), catch_tell(L)