Efficiency

Level 6 of the Dungeon
(0, 0, D:6)
  an adder corpse
(2, -1, D:6)
  27 arrows (still there?)
  a +0 shortbow (still there?)

Level 7 of the Dungeon
(0, 0, D:7)
  13 gold pieces
(1, -6, D:7)
  a +0 ring mail
(6, -3, D:7)
  8 gold pieces
(8, 2, D:7)
  a +0 robe
(17, -10, D:7)
  a +0 quarterstaff
(26, -9, D:7)
  a +0 ring mail
(27, -7, D:7)
  a bullfrog corpse
(32, -12, D:7)
  9 stones
(32, -10, D:7)
  a scroll of teleportation
(32, -9, D:7)
  a +0 leather armour

Level 8 of the Dungeon
(0, 0, D:8)
  Xyosaenn's Papyrus of Darkness
    Spells                            Type                      Level      
    Known
     a - Animate Skeleton              Necromancy                    1         
    no
     b - Pain                          Necromancy                    1         
    no
     c - Dispel Undead                 Necromancy                    4         
    no
     d - Agony                         Necromancy                    5         
    no
     e - Borgnjor's Vile Clutch        Necromancy/Earth              5         
    no