The Button Man and the Murder Tree

George R. R. Martin's Wild Cards multi-author shared-world universe has been thrilling readers for over 25 years. Now, in addition to overseeing the ongoing publication of new Wild Cards books (like 2011's Fort Freak), Martin is also commissioning and editing new Wild Cards stories for publication on Tor.com. In Cherie Priest's "The Button Man and the Murder Tree," it's Chicago in 1971, and Raul is a button man, a professional ender of lives that the Mob needs ended. But, something's odd about his most recent assignments. And, then, there are those mushrooms growing out of his skin...