No: HPFGUIDX 113104 I'd like to know if the Marauder's Map would have shown Ginny and Tom Riddle in the COS, if Fred and George had looked. I tend to think not, because the makers of the map -- James, Sirius, Lupin, and Wormtail -- apparently did not know where the COS was located, to include it on the map. Any ideas? Angie