"Primordial Threat is a good combination of science and adventure fiction."
- Larry Niven, New York Times bestselling author
"... exciting sci-fi catastrophism ... call it The Day the Earth Certainly Didn't Stand Still.
Rothman (Perimeter, 2018), an engineer, tackles the hard-science/apocalypse trope of a 'Very Bad Thing' threatening Earth in the tradition of Philip Wylie and Edwin Balmer's epochal When World's Collide and Larry Niven and Jerry Pournelle's Lucifer's Hammer."
- Kirkus Reviews
"With Primordial Threat, Michael Rothman puts the OMG back in Science Fiction! Fascinating characters, an Asimov-sized plot, and lots of intrigue. Michael Rothman delivers. Chilling Science Fiction from a new Arthur C. Clarke. Movie-ready SF from a new master!"
- William C. Dietz, New York Times bestselling author
"Written by one who really knows the science, PRIMORDIAL THREAT zips along--a hard sf treat."
- Gregory Benford, New York Times bestselling author of TIMESCAPE.
"Michael Rothman's PRIMORDIAL THREAT is a big disaster novel -- maybe the biggest, with the end of the solar system in play. There goes the neighborhood! Filled with innovative science and big-scale action, it shows humanity in crisis, and humanity at its best."
- Kevin J. Anderson, New York Times bestselling author of BLOOD OF THE COSMOS
"For nail-biting science fiction thrillers, look no further than one of Rothman's stories. Sit back and enjoy the ride."
- Larry Correia, New York Times bestselling author.
"Who says hard science fiction is dead? The field is safe and sound in the hands of Michael Rothman. Real science from a real scientist -- and a thrilling page-turner, to boot. What more could one ask?"
- Robert J. Sawyer, Hugo Award-winning author of Quantum Night
"Michael A. Rothman's PRIMORDIAL THREAT is a beautifully-conceived hard science adventure, with totally believable characters and events, and a truly satisfying conclusion."
- Mike Resnick, 4-time Hugo Award Winning author
"Michael A. Rothman's PRIMORDIAL THREAT leverages real technical expertise to find the human drama in a plausible near-future extinction scenario. This is gripping reading, one part Larry Niven and one part Michael Crichton!"
- D.J. Butler, author of WITCHY EYE and THE KIDNAP PLOT
"The Primordial Threat is the Next Level in Extinction Event thrillers. Rothman deftly navigates actual science with a taut edge-of-your-seat tension that will scare you to death. I wouldn't be surprised if he wasn't already gaming Worst Case Scenarios for the White House."
- Nick Cole, author of The Old Man and the Wasteland (Amazon #1 in SciFi) and Soda Pop Soldier (Publisher's Weekly Starred Review)
"M.A. Rothman has combined the high-frontier space realism of Kim Stanley Robinson, with the big ideas and cosmic scope of Larry Niven, and paced it all like a Michael Crichton adventure. A terrific roller coaster ride, which hits the reader on several levels. Highly recommended."
- Brad R. Torgersen, Multi-award winning Hard S.F. author
