IndexError

Level 1 of the Dungeon
(0, 3, D:1)
  a +0 dagger
(8, 12, D:1)
  a +0 club
(9, 11, D:1)
  a +0 spear
(14, 13, D:1)
  a +0 whip
(20, -21, D:1)
  a +0 club
(23, -13, D:1)
  57 stones
  a +0 chain mail
(24, 21, D:1)
  a +0 dagger
(33, -10, D:1)
  5 poisoned darts
(40, -18, D:1)
  a +0 club
(43, 7, D:1)
  a +0 dagger
(46, 21, D:1)
  a +0 dagger
(48, -7, D:1)
  a +0 whip
(48, 23, D:1)
  a +0 hunting sling
(49, -7, D:1)
  a +0 club
(49, 34, D:1)
  a +0 dagger
(56, 36, D:1)
  a +0 dagger
(65, 23, D:1)
  a +0 club

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 dagger
(17, 30, D:2)
  a +0 great mace
(20, -6, D:2)
  a +0 leather armour
  a +0 scale mail
  a +0 plate armour
  a +0 scale mail
  a +0 robe
(23, 17, D:2)
  2 boomerangs
(30, -5, D:2)
  a +0 spear
(38, 3, D:2)
  a +0 flail
  a +0 club
  a +0 club
(40, 0, D:2)
  a +0 dagger
(41, 30, D:2)
  a +0 trident
(50, 2, D:2)
  a +0 club
  a +0 hunting sling

Level 3 of the Dungeon
(3, 3, D:3)
  a +0 dagger of protection
  a +0 chain mail
  a +0 robe
  a +0 plate armour
(18, 27, D:3)
  a +0 scythe
(39, 16, D:3)
  a +0 hunting sling

Level 4 of the Dungeon
(3, -3, D:4)
  a +0 quarterstaff
(5, 28, D:4)
  a +0 flail
(5, 48, D:4)
  a +0 ring mail
  a +0 scale mail
  a +0 scale mail
(6, 26, D:4)
  a +0 dagger
(8, 26, D:4)
  a +0 hand axe of venom
(12, 10, D:4)
  a +0 club
(13, 30, D:4)
  a +0 dagger
(14, 14, D:4)
  a +0 tower shield
(17, 1, D:4)
  4 poisoned darts
(19, 0, D:4)
  a +0 dagger
  a kobold corpse (skeletalised by now)
(24, 18, D:4)
  a +0 whip
(33, 44, D:4)
  5 poisoned darts
  a +0 club