The Grand Grimoire is a dark magic book appeared in the TV series Sleepy Hollow which first belonged to John Dee, whom according to to Ichabod, was a student of the occult.
In 21st century Sleepy Hollow, the Grand Grimoire is one of the artifacts that will be auctioned in the Claridge Auction House. A 17th century warlock named Solomon Kent steals it and tries to activate its powers, only to fail as the Grand Grimoire is missing some pages.
The missing pages of the Grand Grimoire were found in the auction house's warehouse. Kent takes the missing pages and flees to the Pocantico Grove during the purging of the tides where he casts not a resurrection spell but a time traveling spell.
Kent would not complete the time traveling spell as he was killed in the ensuing battle against Ichabod, Abbie and Irving. Irving, upon dealing the finishing blow on Solomon, secretly takes the Grand Grimoire. When asked by Ichabod and Abbie, Irving declares that the Grand Grimoire burned away with Solomon's body.
The following morning, Irving meets with Henry Parrish to whom he surrenders the Grand Grimoire. Using the Grimoire, Henry tolled the fake Revolutionary Bell to preform the Awakening Ritual, but only three witch decendents was awakened very briefly. Then, Henry found his mother, Katrina, granting her the Grimoire and then preformed the ritual with her. However, Ichabod and Abbie managed to foil their plan and killed Henry. Then, an utterly enraged Katrina used the time travelling spell form the Grand Grimoire to travel back in time to kill her husband, but Abbie managed to follow her back in the year 1784.
With Grace Dixon's help, Abbie erased the effect of Katrina's spell and managed to let both of them returned to the present. Katrina, in sheer rage, tried to destroy Abbie with the Grand Grimoire's curse, but Ichabod managed to knock the Grimoire down from Katrina's hand and seize the chance to, relucantly, killed her, saving Abbie from certain death.
The Grimoire's current whereabout is unknown, but it is assumed to be locked deep in August Corbin's Archive for safety.
Around 2030, in an alternate future where Malcolm Dreyfuss had conquered America, an older version of Crane had sent Lara Thomas to undo everything that happened from the moment that Diana had become the Horseman of War. He sent her to retrieve the Grand Grimoire to cast the Traveler's Spell. After locating it in Malcolm's lair where it was sent after everything in the Archives had been seized by Malcolm, she was able to cast the Traveler's Spell and, despite Malcolm's efforts to stop her, go back in time. After correcting the past, the alternate future had ceased to exist.
- Resurrection Spells
- Traveller's Spells (time traveling)
- Spell for the Awakening Ritual