Michael Mammay

Colonel Carl Butler charges back into the world of military crisis, corporate malfeasance, and intergalactic mystery in the action-packed fifth Planetside novel from science fiction master Michael Mammay. Carl Butler has returned to his home planet from the moon Taug and is looking forward to...

In this thrilling, action-packed fourth installment in the Planetside series from acclaimed science fiction author Michael Mammay, retired Colonel Carl Butler gears up for another military investigation, full of danger, corporate intrigue, and tech people would kill for—perfect for fans of...

A missing scientist and deep pockets pull Colonel Carl Butler out of retirement, investigating another mystery that puts him and his team—and the future of relations with alien species—in danger in COLONYSIDE, the exciting follow-up to Planetside and Spaceside...read by R.C. Bray! A...

Eine tödliche Verschwörung auf einem vom Krieg zerrissenen Planeten. Der fesselnde Auftakt der Science Fiction-Reihe des amerikanischen...

Butlers Einsatz auf Cappa hat zahllose Leben gefordert... und es ist noch nicht vorbei. Die fesselnde Science Fiction-Reihe kehrt zurück! Colonel Carl...

From the author of Planetside, a Best Book of 2018 (Library Journal) A military legend is caught in the web between alien intrigue and human subterfuge… Following his mission on Cappa, Colonel Carl Butler returns to a mixed reception. To some he is a do-or-die war hero. To the other half of...

Ocean’s Eleven meets John Scalzi in this funny, action-filled, stand-alone sci-fi adventure from the author of Planetside, in which a small team of misfit soldiers takes on a mission that could change the entire galaxy. Sergeant Gastovsky—Gas to everyone but his superior officers—never...

In this riveting, stand-alone novel from Michael Mammay, author of Planetside, the beginning of a new human colony must face tyrannical leaders, revolution, crippling instability, and an unknown alien planet that could easily destroy them all. In 2108, Colony Ship Voyager departed Earth for...

A seasoned military officer uncovers a deadly conspiracy on a distant, war-torn planet… War heroes aren't usually called out of semi-retirement and sent to the far reaches of the galaxy for a routine investigation. So when Colonel Carl Butler answers the call from an old and powerful friend...