IndexError

Level 1 of the Dungeon
(1, 0, D:1)
  a +0 leather armour
(1, 10, D:1)
  a +0 sling
(2, 0, D:1)
  a +0 hand axe
(12, -14, D:1)
  a frilled lizard skeleton
(12, -13, D:1)
  a bat skeleton
(12, -3, D:1)
  a quill talisman
(13, -10, D:1)
  a hobgoblin skeleton
(23, -14, D:1)
  a +0 ring mail
(29, 15, D:1)
  3 stones
  a +0 short sword
  a kobold skeleton
(36, -15, D:1)
  a ball python skeleton
(37, -41, D:1)
  a hobgoblin corpse (skeletalised by now)
(39, 5, D:1)
  a +0 kite shield
(59, -24, D:1)
  an orb of mayhem

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 ring mail
(3, 0, D:2)
  a +0 club
  a goblin corpse