IndexError

Level 1 of the Dungeon
(1, -5, D:1)
  a +0 chain mail
(3, -5, D:1)
  a +0 robe
(19, -22, D:1)
  a +0 club
(25, -17, D:1)
  a +0 leather armour
(26, -10, D:1)
  a scroll of teleportation
(31, 16, D:1)
  a +0 short sword of electrocution
(31, 28, D:1)
  a book of Spectacle
(37, 20, D:1)
  a +0 hunting sling
(38, 7, D:1)
  a +0 dagger of venom
(40, 18, D:1)
  a +0 club
(48, 14, D:1)
  a book of Necromancy
(51, 1, D:1)
  a +0 dagger
  3 stones

Level 2 of the Dungeon
(0, 0, D:2)
  a quokka corpse (skeletalised by now)
(3, 5, D:2)
  a +0 dagger
  a +0 dagger
(4, -15, D:2)
  19 stones
(4, 21, D:2)
  an adder corpse
(5, 6, D:2)
  22 arrows
(7, 13, D:2)
  a rat corpse (skeletalised by now)
(10, -13, D:2)
  a +0 hunting sling
(19, 31, D:2)
  a +0 club
  a goblin corpse
(20, 4, D:2)
  15 stones
(24, -9, D:2)
  18 arrows
(33, -9, D:2)
  a +0 chain mail
(35, 8, D:2)
  a +0 dagger
  a +0 robe
(57, -18, D:2)
  a staff of death {rN+}