Deadly Corners is part of the Dungeon of Doom. Deadly Corners is Encounter 4. It is made of "Dwarvenite" and includes some metal and magnetized parts. This item was initially available in a pledge level during the Dungeon of Doom Kickstarter. The item comes in both painted and unpainted versions.
Deadly Corners comes with these 57 pieces:
(9) Vaulted Wall
(1) Vaulted Wall (Magnetic)
(1) Vaulted Open Arch Wall
(6) Vaulted Corner
(2) Vaulted Corner (Magnetic)
(9) Dungeon Floor
(2) 1x1 Dungeon Floor
(2) Vaulted Door Frame
(2) Vaulted Door Corner (w Narrow Ancient Door)
(2) --Ancient Door
(2) --Narrow Ancient Door
(1) Vaulted Double Door Frame
(1) Solid Wall Insert
(2) Classic Dungeon 1x1 Wall
(2) Passage Wall
(1) Plinth Arch (Magnetic)
(2) Magnetic Arrow Launcher
(4) Classic Dungeon Freestanding Corner (Magnetic)
(1) Corner Secret Door
(1) Magnetic Wall Glyph
(1) --Wooden Double Doors
(1) Bar Insert
(1) Small Treasure Pile
(1) Sword of Andronicus