Responding to the distress call was supposed to be a straightforward mission. But when Thea Sadik and her crew land on the distant planet of Achlys, they find destruction and devastation ... and no survivors. As they try to piece together the puzzle of who or what could have decimated an entire operation, they discover that some SOS messages should be ignored and some monsters are only too ready to awaken.

Originally published in 2018. This edition includes a preview of the sequel "Immunity."