Sponsored by Baen Books and Gordion Protocol, for the first time in paperback.
After a psychotic episode, Dr. Benjamin Schröder awoke with a detailed set of false nightmare memories. Millions had been slaughtered, the Soviet Union still existed, and thousands of nuclear warheads were spread across the entire planet. But they were only nightmares—until a stranger appeared with a horrifying story about alternate realities, time travel, and temporal knots; and a dozen universes would inevitably die. He thought the man was lying, but if what he said was true, then Schroder would become the greatest mass murderer in human history: it was up to him to choose which one would survive.