Stolas's Grimoire

Stolas's Grimoire is an arcane book belonging to Stolas used by the I.M.P company to illegally access the living world.

Description
The grimoire has a navy blue cover with gold reflective pages separated by a ribbon, and has golden borders with a large red gem on the spine. The front cover is emblazoned with a moon encircling the goetic seal of Stolas, along with a few stars.

When used, the portal glows red on the rim. However, in the episode "Loo Loo Land", it is shown for a second that the portal can be different colors such as blue, though the book was held via Stolas's telekinesis at the time, suggesting it was activated by his magic.

In the series pilot, it had a burgundy cover with dull yellow markings and the crown symbol that is on the walls of Stolas's mansion on the front and white pages.

Background
The exact nature of the Grimoire isn't clear, but Stolas was entrusted with it to carry out unknown duties in Hell, and one of its abilities is to allow the opening of portals between Hell and the living world.

Eventually, it came into the possession of Blitzo, I.M.P's founder, where it became an essential part of the company's business model of travelling to the living world to assassinate targets on behalf of souls damned to Hell. How exactly Blitzo came to have the Grimoire is unclear, as in the series Pilot it's shown that Blitzo stole the book off Stolas after sleeping with him, while in the first episode "Murder Family" Stolas implies he lent it to Blitzo, hoping to exchange its use for monthly sexual favors.

Trivia

 * According to the storyboards of Murder Family, Blitzo supposedly refers the Grimoire as "Hocus-pocus book", however, in the episode, that line was cut.
 * It is implied in "Murder Family" that Stolas only requires the Grimoire once a month for some form of ritual.
 * The location, details and purpose of this ritual have so far not been revealed
 * In "Loo Loo Land" Stolas is shown using the book to travel to a star system that is in the process of being destroyed, indicating the Grimoire's portal creating abilities are not limited to Earth.
 * It is likely Stolas could take back the Grimoire whenever he wants but he would rather use it to get in bed with Blitzo again.