IndexError

Level 1 of the Dungeon
[Shop] Pissaibb's Book Shoppe
  a book of Scorching (360 gold)
  Ozocubu's Autobiography (288 gold)
  the Parchment of Arcane Weapons and Changing (384 gold)
    Spells                            Type                      Level
     a - Beastly Appendage             Transmutation                 1
     b - Flame Wave                    Conjuration/Fire              4
     c - Lehudib's Crystal Spear       Conjuration/Earth             8
  a book of the Senses (384 gold)
  Great Wizards, Vol. II (456 gold)
  a book of Conjurations (240 gold)
  a There-And-Back Book (360 gold)
  a book of Dangerous Friends (480 gold)
  a book of Geomancy (216 gold)
  a book of Geomancy (216 gold)
  the Secrets of the Tarantula (552 gold)
    Spells                            Type                      Level
     a - Summon Forest                 Summoning/Translocation       5
     b - Malign Gateway                Summoning/Translocation       7
     c - Summon Horrible Things        Summoning                     8
(0, 0, D:1)
  a +0 robe
(6, 15, D:1)
  3 poisoned darts
(8, 38, D:1)
  a +0 ring mail
(19, 14, D:1)
  a +0 dagger
(27, 3, D:1)
  a +0 plate armour
(28, 15, D:1)
  a +0 robe
(35, -2, D:1)
  a +0 robe
(38, 33, D:1)
  a stone
  a +0 dagger
(58, 20, D:1)
  a ball python corpse (skeletalised by now)
(58, 23, D:1)
  a rat corpse (skeletalised by now)
(60, 6, D:1)
  a +0 club

Level 2 of the Dungeon
(0, 0, D:2)
  a bat corpse