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Level 1 of the Dungeon
[Shop] Opicekk's Book Shop
  a book of Debilitation (280 gold)
  the Vellum of Toxic Fog (672 gold)
    Spells                            Type                      Level
     a - Poisonous Vapours             Poison/Air                    2
     b - Airstrike                     Air                           4
     c - Corpse Rot                    Necromancy/Poison/Air         4
     d - Olgreb's Toxic Radiance       Poison                        4
     e - Freezing Cloud                Conjuration/Ice/Air           5
  a book of Death (616 gold)
  a book of the Sky (616 gold)
  a book of Necromancy (336 gold)
  the Unrestrained Analects (616 gold)
  an Inescapable Atlas (476 gold)
  a book of Armaments (504 gold)
  a book of Frost (308 gold)
(0, 0, D:1)
  a +0 dagger
(4, 14, D:1)
  a +0 hand axe
  a staff of conjuration
(16, 37, D:1)
  a scroll of blinking
(23, 35, D:1)
  a +0 dagger
(24, 23, D:1)
  a +0 short sword
  5 stones
(25, 25, D:1)
  a +0 leather armour
(31, 40, D:1)
  4 stones
(32, 26, D:1)
  a +0 club
(43, 15, D:1)
  a scroll of blinking
(48, 18, D:1)
  a +0 club
(48, 34, D:1)
  3 stones
(52, 33, D:1)
  a +0 dagger
  4 stones

Level 2 of the Dungeon
(4, 19, D:2)
  3 poisoned darts
(5, 1, D:2)
  a +0 dagger
(11, -7, D:2)
  a +0 dagger
(16, -5, D:2)
  4 stones
(20, -7, D:2)
  a +0 ring mail
(24, -15, D:2)
  a +0 spear
(26, -4, D:2)
  4 stones
(33, -21, D:2)
  a +2 vorpal arbalest
(39, 19, D:2)
  a +0 robe
(43, 15, D:2)
  a +0 helmet
(46, -14, D:2)
  a +0 leather armour
(46, -10, D:2)
  a +0 mace
(47, -10, D:2)
  a potion of brilliance
  a potion of attraction

Level 3 of the Dungeon
(10, 29, D:3)
  a +0 dagger
(14, -15, D:3)
  a scroll of poison
  a scroll of fog
  a +0 scale mail
(24, 30, D:3)
  a +0 scythe
  a +0 robe
(29, 12, D:3)
  a +0 hand axe
  a +0 dagger
(30, 12, D:3)
  a +0 club
(31, 12, D:3)
  a +0 trident
  a +0 ring mail
(35, 0, D:3)
  a +0 club
(44, 27, D:3)
  a +0 leather armour
(49, 41, D:3)
  a book of Misfortune

Level 4 of the Dungeon
(0, 0, D:4)
  2 stones
(19, 14, D:4)
  a +0 dagger
(28, 8, D:4)
  5 stones