Issue 4 of FUTURE SF is themed Alien Invasion. It features eight stories from the UK, Russia, USA, China, Sweden, and Italy.Table of Contents:"They Are Coming" by Paul R. Hardy"The Building Atop the Hill" by Alexander Bachilo (translated by Alex Shvartsman)"A Typical Tale of Bloodlust and Conquest" by Mike Resnick"You Came to the Tower" by Shaenon K. Garrity"Through the Fog, a Distant Land Appears" by Wanxiang Fegnian (translated by Nathan Faires)"Yi" by Oskar Källner (translated by Gordon Jones)"The Last Trial" by Stephen S. Power"The Messiah of the Thirteenth Colony" by Davide Camparsi (translated by Michael Colbert)