Stephen Baxter 
Obelisk 

A remarkable collection of short fiction from one of our greatest SF authors, including two brand new short stories. This collection contains stories set in the universe of the bestselling duology PROXIMA and ULTIMA, which expand on the characters and worlds of that series. There are also a selection of alternate histories and possible futures, echoing Baxter’s work with Terry Pratchett on the LONG EARTH series. Confirms Stephen Baxter’s place as one of the greatest practitioners of the SF short story.