Time-traveling aliens, the apparent victors over humanity in a future war, recruit humans throughout the ages to plunder Earth of its art treasures. Oddballs and losers of all kinds are offered the option, plucked from their centuries, and taken to the future where they're trained and formed into teams. It takes a certain amount of cynicism and survival instinct to make it through the program, and our heroine Ceece has both. She knows the score. And she certainly shouldn't be falling for this guy in the 1950s who they're setting up as the patsy on the latest assignment. Especially not when he's due to die anyway...
(from the author's website)

Originally published in Amazing, March 1986.