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From Pathfinder #191: The Destiny War, which isn't enabled.

Deck of Harrowed Tales

ITEM 20
UNIQUEARTIFACTMAGICAL
Usage held in 2 hands
Bulk L

The Deck of Harrowed Tales is a unique deck connected to a unique demiplane known as the Harrowed Realm.

Activate envision, Interact
Frequency Once per day
Effect If on a plane other than the Harrowed Realm, the deck creates a Gate to the Harrowed Realm.

Destruction The Deck of Harrowed Tales can be destroyed by completing a mythical series of 54 quests tied to each of the cards within. Only then can the final 55th quest be revealed, upon the completion of which the deck vanishes.

Pathfinder #191: The Destiny WarOGL