The Scalians are back! In another surprising twist, the end of "The Scalian Legacy" was not as it seemed, and humanity is still in grave danger. In Nagaran's Revisals, Admiral Tarza matches wits once more with humanity and their allied species for control of the galaxy and time itself. Timelines change rapidly, and the theater of battle spans several millennia in this fast-paced space odyssey. Jack Felder, his brothers, Anterian Rivas, Doctor Simon and other entertaining figures from the original book are joined by new characters as the epic adventure expands and the mysteries of Scalia's past are revealed.