Denis

Level 6 of the Dungeon
(0, 0, D:6)
  a potion of magic
(0, 4, D:6)
  15 gold pieces

Level 13 of the Dungeon

Level 14 of the Dungeon
(0, 0, D:14)
  25 gold pieces

Level 15 of the Dungeon
(1, -1, D:15)
  a smoky gem