Ahead of Prime Big Deal Days, Amazon has brought back its popular "3 for 2" book sale . A notable inclusion for Brandon Sanderson fans is the sci-fi author's latest book, Blightfall, which marks the start of Riftwake — a new series and the first official expansion to the Cytoverse. Blightfall is less than $2 off on its own, so this sale is only really worth it if you can find two more books you'd want to pair with it. I'd recommend checking out Sanderson's Cosmere universe books, which are also included in the promotion as well. Amazon '3 for 2' Sale on Brandon Sanderson Books Brandon Sanderson's Cytoverse is still fairly new. The universe was kicked off by the Skyward series, which focused on building a sci-fi world more grounded in the YA genre . During IGN's interview , Sanderson explained his intention to skew a tad younger with his writing "because the story is about teens who are f