Zero

Level 1 of the Dungeon
[Shop] Osumpeucve's Antique Armour Emporium
  (Shop contents are unknown)
(0, 0, D:1)
  a frilled lizard corpse
(10, -9, D:1)
  a rat corpse
(20, 10, D:1)
  a rat corpse
(23, 2, D:1)
  a +0 dagger