Tor.com, the Macmillan Web site/publishing venture focused on launching original science fiction, fantasy prose and Web comics, is offering a teaser today of bestselling author Brandon Sanderson’s new novel, The Way of Kings, which it plans to publish August 31. At 12 PM EST today, Tor.com will post an exclusive first excerpt of the novel.

The excerpt consists of a prelude, a prologue, and the first three chapters, and is roughly 50 pages. Anyone may print, post, or share the prelude and prologue (but not the first three chapters) once they are posted at noon. In order to access the content, users must register (which is free).