Riddle

Level 1 of the Dungeon
(0, 0, D:1)
  a stone
(2, -3, D:1)
  a stone
(2, -2, D:1)
  a stone
(2, -1, D:1)
  a stone
(2, 1, D:1)
  a stone
(3, -1, D:1)
  4 stones
(3, 0, D:1)
  2 stones
(3, 1, D:1)
  3 stones
(4, -3, D:1)
  a stone
(4, 0, D:1)
  4 stones
(4, 1, D:1)
  a stone
(5, -3, D:1)
  3 stones
(5, -2, D:1)
  4 stones
(5, -1, D:1)
  4 stones
(5, 1, D:1)
  a stone
(5, 3, D:1)
  a stone
(6, -3, D:1)
  a stone
(6, 0, D:1)
  a stone
(6, 1, D:1)
  a stone
(7, -1, D:1)
  2 stones
(8, -20, D:1)
  a +0 club
(8, -2, D:1)
  a stone
(16, -13, D:1)
  11 bolts
(21, -16, D:1)
  a +0 hunting sling
(24, -6, D:1)
  a +0 scale mail
(28, -21, D:1)
  a +0 mace
(28, 21, D:1)
  a +0 mace
(29, -13, D:1)
  a +0 club
(43, -7, D:1)
  12 stones

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 leather armour
(11, 8, D:2)
  a +0 war axe
(17, -1, D:2)
  a cursed -3 hand axe
(19, 12, D:2)
  a +0 dagger
  a +0 hunting sling
  8 stones
(23, -4, D:2)
  a +0 whip
(23, 14, D:2)
  a stone
(24, 13, D:2)
  a stone
(26, 13, D:2)
  a stone
(30, 4, D:2)
  19 stones
(33, -9, D:2)
  18 arrows
(39, -14, D:2)
  a +0 trident
(51, -26, D:2)
  a +0 hand axe
(55, -12, D:2)
  a -3 ring of protection
  an uncursed amulet of inaccuracy
  a +0 robe
(56, -8, D:2)
  a +0 chain mail
(57, -9, D:2)
  a +0 ring mail

Level 3 of the Dungeon
(0, 0, D:3)
  a +0 club
  a rat skeleton
  a frilled lizard skeleton
(2, 2, D:3)
  an adder skeleton
(6, -14, D:3)
  a +0 whip
(8, -6, D:3)
  29 stones
(10, -9, D:3)
  a scroll of teleportation
(10, 18, D:3)
  a +0 club
(19, 34, D:3)
  a +0 club
(22, 28, D:3)
  a +0 short sword
(24, 32, D:3)
  a +0 trident
(28, 36, D:3)
  23 stones
(49, 36, D:3)
  a +0 ring mail
(54, 21, D:3)
  a poisoned needle
(56, 21, D:3)
  a +0 whip
  a +0 blowgun
  8 poisoned needles

Level 4 of the Dungeon
(0, 0, D:4)
  a ration
(1, 3, D:4)
  a +0 rapier
(2, 11, D:4)
  a ration
(4, 1, D:4)
  a +0 mace