R  TT   M T EHTTT         ZZMMH MMMMMMTT HMNNN HMMMMMMZZ  H   MMNMTTTHMMH  HMMMHNMZZMM MMH MFMTTTHMMHM HMMMMMMZZNNNMMH   H TTHM  M HM     ZZMMMMMH MMMH  HM XMMHMHXXXXX M MMMHTHMH TMHN X MHMH      X M NHTHMH HMMXMX MHM XXXXXZXX M NNHMH  MN MX MHM      H  E MNNHMH HMM MX MHMHXXXXXHHXH MMMMMMM MMXMXNMHMH     HH HN            XFMHMXXXXXXHHXXXXXXXXXXXXXH   MHM  EN HHH EN          HXXMMHMHXXXHTTHXXXXXXXXXXXXXH H  HMH   H T             NNN MMHMXXXXH  XXXXXXXXXXXXXXXXXXXXXXXXXXXX                                                                                    
The Vault
You can trap enemies in the bottom vault by waiting at the bottom of the long ladder.  To kill them, come out, dig one brick, then go back and wait again.
