Sergey

Level 1 of the Dungeon
(10, 15, D:1)
  a +0 club

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 club
(26, -17, D:2)
  4 stones

Level 3 of the Dungeon
(0, 0, D:3)
  a kobold corpse (skeletalised by now)
(1, 1, D:3)
  a +0 dagger
(9, -13, D:3)
  a rat corpse (skeletalised by now)
(13, -4, D:3)
  a +0 trident
(23, -3, D:3)
  7 gold pieces

Level 4 of the Dungeon
(0, 0, D:4)
  a scroll of teleportation
(2, -9, D:4)
  a wand of flame (21)
(5, -9, D:4)
  a +0 short sword
(5, 9, D:4)
  a +0 pair of boots
(12, 2, D:4)
  a worker ant corpse
(30, -9, D:4)
  12 gold pieces

Level 5 of the Dungeon
[Shop] Gozag's Platinum Reserve
  (Shop contents are unknown)
(5, -13, D:5)
  8 gold pieces
(21, 9, D:5)
  17 bolts
(24, 5, D:5)
  a +0 short sword