whodunnit

Level 1 of the Dungeon
[Shop] Lubauhim's Book Shoppe
  a book of the Earth (504 gold)
  a book of Scorching (420 gold)
  a Young Poisoner's Handbook (280 gold)
  a book of Winter (560 gold)
  a book of Iron (532 gold)
  a book of Scorching (420 gold)
  a book of Geomancy (280 gold)
  a manual of Staves (1120 gold)
(5, -7, D:1)
  a bat skeleton
(8, 2, D:1)
  a +0 mace
(10, 9, D:1)
  a bat corpse (skeletalised by now)
(11, -6, D:1)
  a ball python skeleton
(11, 10, D:1)
  a +0 club
(23, -9, D:1)
  a hobgoblin corpse (skeletalised by now)
(23, -8, D:1)
  a +0 dagger
(26, -8, D:1)
  a ball python corpse (skeletalised by now)
(39, -17, D:1)
  a +0 hand axe
(40, -15, D:1)
  a +0 short sword
  a kobold corpse (skeletalised by now)
(40, -14, D:1)
  a rat corpse (skeletalised by now)

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 leather armour
(3, -4, D:2)
  a +0 buckler
(5, -4, D:2)
  a +0 spear
(9, -4, D:2)
  a +1 pair of boots
(12, 0, D:2)
  a +0 robe
(17, -19, D:2)
  a ball python corpse (skeletalised by now)
(20, 5, D:2)
  a +0 leather armour
(21, 6, D:2)
  a +0 robe
(22, -27, D:2)
  a rat corpse (skeletalised by now)
(22, -24, D:2)
  a +0 chain mail
(22, -23, D:2)
  a +0 dagger
(24, 13, D:2)
  a +0 ring mail
(26, -33, D:2)
  a +0 robe
(28, -15, D:2)
  a +0 leather armour
(33, -33, D:2)
  a hobgoblin corpse (skeletalised by now)
(33, -31, D:2)
  a +0 club
  a jackal corpse (skeletalised by now)
(35, -33, D:2)
  a bat corpse (skeletalised by now)
(37, 1, D:2)
  a +0 ring mail
(39, -24, D:2)
  a +0 dagger
(39, -6, D:2)
  an adder corpse (skeletalised by now)
(43, -23, D:2)
  a rat corpse (skeletalised by now)
(49, -16, D:2)
  a +0 robe
(54, -19, D:2)
  a ball python corpse (skeletalised by now)
(55, 5, D:2)
  a frilled lizard corpse

Level 3 of the Dungeon
(0, 0, D:3)
  a +0 club
  a +0 sling
(6, -1, D:3)
  a +0 robe
(7, -3, D:3)
  a +0 leather armour
(14, 0, D:3)
  an adder corpse
(16, 8, D:3)
  a +0 dagger
  a goblin corpse
  a rat corpse
(22, -3, D:3)
  an adder corpse
(25, 4, D:3)
  a +0 chain mail
(33, 17, D:3)
  a +0 club
  a +0 dagger
  a goblin corpse
(34, 17, D:3)
  a scroll of teleportation
(35, 9, D:3)
  10 gold pieces
(35, 13, D:3)
  a +0 dagger
(35, 16, D:3)
  a +0 club
(35, 18, D:3)
  a +0 club
  a +0 animal skin
  a +0 helmet
  a +0 dagger
  the hobgoblin corpse of Robin
  a hobgoblin corpse
  a goblin corpse
(35, 20, D:3)
  a +0 dagger
  a goblin corpse