Changes

In the 40th Millenium, the shrine came under a vicious attack by [[Black Legion]] traitor space marines, whom the Imperial Fists and Guardsmen managed to hold at bay for three weeks while calling for reinforcements. Then, a [[warp]] portal opened in the sky, unleashing a horde of [[daemons]] that massacred almost the entire garrison, desecrating the corpses thereafter. By the time [[Ultima Squad]] under [[Captain]] [[Severus]] of the [[Ultramarines]] arrived, only Carnak and brother [[Nidon]], who was charged with personally carrying and protecting the book, remained. Surviving another attack from the Black Legion, the remaining two Fists and remaining Ultramarines evacuated to the an orbiting Ultramarine [[Strike Cruiser]]. When Severus is exposed was revealed to have been possessed by a daemon himself, he killed most of the marines, including Carnak, and took the book to the ship's reliquary with the plan of creating a portal over the Ultramarine homeworld of [[Macragge]] to grant the planet a similar similarly grisly fateto that of the Mithron shrine. This plan was narrowly foiled by Ultramarine brothers [[Proteus]] and [[Verenor]], and shortly before the ship exited the [[Immaterium]] above Macragge; what became of the book afterwards is unknown.

The book will 's pages appear to be empty blank when dormantbut, but with dark incantations, writing will begin to appear in the pages that seem to allow the user to create a warp portal at the desired location.