IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 scale mail
(5, -6, D:1)
  a +0 dagger
(10, -6, D:1)
  a +0 scale mail
(11, -34, D:1)
  a +0 ring mail of cold resistance
(11, -4, D:1)
  a +0 club
(13, -29, D:1)
  a +0 whip
(14, -39, D:1)
  a +0 spear
(19, -12, D:1)
  a +0 club
  a kobold corpse (skeletalised by now)
(20, -14, D:1)
  a +0 ring mail
(23, -17, D:1)
  3 large rocks
(36, -40, D:1)
  a bat corpse
(42, -30, D:1)
  a +0 mace
(45, -40, D:1)
  a +0 helmet
(58, -18, D:1)
  a bat corpse
(59, -18, D:1)
  a +0 dagger
(60, -19, D:1)
  a +0 dagger
  a +0 ring mail