Changed by the routines at 30211 and 31126, and checked by the routines at 29952 (using the event entries at 24586 and 24727) and 31289. Each bit set here corresponds to a key in Sam's possession.

Bit(s)	Key
0-2	Unused
3	No. 74
4	No. 31
5	No. 27
6	No. 15
7	No. 19