IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 dagger
(9, 17, D:1)
  a +0 leather armour
(14, -24, D:1)
  a +0 dagger
(16, 19, D:1)
  a +0 club
(17, 18, D:1)
  a +0 dagger
(18, -2, D:1)
  3 stones
  a +0 short sword
(19, -7, D:1)
  a +0 robe
(27, -19, D:1)
  5 stones
(29, -40, D:1)
  a +0 dagger
(31, -5, D:1)
  a +0 dagger

Level 2 of the Dungeon
(1, 0, D:2)
  a +0 dagger
  5 stones
  a +0 ring mail
(4, 11, D:2)
  4 poisoned darts
(5, 11, D:2)
  3 stones
(6, 9, D:2)
  a +0 scale mail
(6, 10, D:2)
  an amulet of magic regeneration
(11, -12, D:2)
  a +0 hand axe
(17, -3, D:2)
  a +0 dagger
(21, -21, D:2)
  a +0 dagger
(28, -17, D:2)
  a +0 dagger
(30, 10, D:2)
  2 stones
(31, -17, D:2)
  a +0 dagger
(36, -13, D:2)
  a +0 dagger
(44, -17, D:2)
  a +0 club
(45, 13, D:2)
  a +0 whip
(48, 9, D:2)
  8 stones
(54, -5, D:2)
  a +0 leather armour

Level 3 of the Dungeon
(0, 0, D:3)
  a quokka corpse (skeletalised by now)
(4, -4, D:3)
  a quokka corpse (skeletalised by now)
(12, 16, D:3)
  6 stones
(14, -3, D:3)
  a +0 club
(27, -12, D:3)
  a +0 leather armour
(27, 19, D:3)
  a +0 sling
(28, 22, D:3)
  a +0 club
  an orc corpse (skeletalised by now)
(33, 9, D:3)
  a frilled lizard corpse (skeletalised by now)
(34, -11, D:3)
  a +0 robe
(40, 8, D:3)
  a ball python corpse (skeletalised by now)
(44, 6, D:3)
  a +0 spear of freezing
(45, 15, D:3)
  a potion of mutation

a sewer
(0, 0, Sewer)
  a frilled lizard corpse
(0, 6, Sewer)
  a giant cockroach corpse
(2, 3, Sewer)
  a worm corpse
(6, 36, Sewer)
  a river rat corpse (skeletalised by now)
(9, 4, Sewer)
  a river rat corpse
(14, 32, Sewer)
  a jackal corpse
(14, 35, Sewer)
  a ball python corpse
(14, 39, Sewer)
  a jackal corpse
(15, -3, Sewer)
  a ball python corpse