Denis

Level 5 of the Dungeon
(0, 0, D:5)
  a book of the Moon

Level 6 of the Dungeon
(0, 0, D:6)
  a potion of lignification

Level 10 of the Dungeon
(0, 0, D:10)
  4 stones

Level 12 of the Dungeon
(0, 11, D:12)
  a +0 broad axe
(1, -1, D:12)
  a +0 leather armour
(9, 7, D:12)
  a +0 buckler
(14, 7, D:12)
  a scroll of teleportation

Level 15 of the Dungeon
(0, 0, D:15)
  a +0 club
(7, 0, D:15)
  a +6 ring of dexterity
(13, -5, D:15)
  a smoky gem
(13, -2, D:15)
  a scroll of vulnerability