A post-Avatar Storm companion to Mage's first Umbral sourcebook, Beyond the Barriers: the Book of Worlds, The Infinite Tapestry has the unenviable job of updating the Umbra's realms to incorporate the effects of the Avatar Storm -- namely the isolation from Earth and dissolution of those Horizon Realms that weren't outright destroyed, plus bringing a conceptual space seemingly written for freewheeling, anything goes, kitchen sink-style play in line with Mage Revised's refocusing on personal responsibility and low-key magic.

Part of this involves showing how the Avatar Storm hasn't completely eliminated the Umbra as a viable venue of action from Mage games, through new ways for mages to enter the Otherworlds without necessarily being shredded by Avatar shards -- such as the Stormwarden merit, hiding within a spirit's "body," and crossing through a naturally occurring hole in the Gauntlet.

Also, The Infinite Tapestry revisits and revises some places first described in The Book of Worlds, such as Victoria Station; what was once a bustling jumping-off point for ethernauts becomes an empty floating hulk in space, populated by a few listless spirits. At the same time, the book presents new "regions" that characters on quests for knowledge and insight might visit, such as the River of Language, a massive network of tributaries and river deltas where all languages flow and mix.