Crypt, Explanation of:

A crypt is a structure (usually beneath the surface of the earth) where many dead of laid to rest. This form of burial place has multiple chambers and hallways, some of which can be vast and seemingly endless.
Roll on Chart #1 and follow the notes to know how many chambers you will find in a discovered crypt:

%Roll:  # of chambers:
01-58:   1-D4 +1
59-69:   1-D6 +2
70-79:   1-D8 +3
80-88:   1-D10 +4
89-95:   1-D12 +5
96-00:   1-D20 +6