Tome of Sedar

An ancient tome, slight enough to fit snugly in one hand. Its cover, coarse as a duergar’s beard, is dark enough to drink any light careless enough to wander near. A lone sigil, drawn with ink like burnt mercury, looks to crawl across the front. When you rest your hand on the cover you feel a languid shiver. Dark leather straps keep it closed securely. When opened, the pages inside, cold to the touch, appear virginal to anyone but you.

This tome, along with anything written on its pages, can't be damaged by fire or immersion in water. In addition, it doesn't deteriorate with age. However, it cannot be replaced or recovered by ceremony.

As long as you own the Tome of Sedar and are attuned to it, it has the following properties.

Cyclopean Gaze Besides being your Book of Shadows, you can use the Tome of Sedar as a spellcasting focus for your warlock spells.

Book of Ancient Secrets As long as you own the Tome of Sedar you are considered to have the Book of Ancient Secrets Invocation.