The Cosega Sequence Books in Order

Archaeologist Ripley Gaines discovers an artifact that could overturn accepted human history. Powerful forces move to seize it and silence everyone who has seen it, leaving him racing to decode the Cosega Sequence while staying alive.

As the Eysen reveals evidence of an earlier advanced civilization, Gaines faces enemies determined to control its secrets. The missing Clastier Papers may help him understand the Cosegans, but deciphering their message becomes urgent as powerful pursuers close in.

Gaines and Asher flee a conspiracy while tracing the connections between extraordinary artifacts and Clastier's life. Each discovery increases the danger, and understanding the Cosega Sequence may carry consequences as deadly as failing to decode it.

Rip and Gale have three days to solve the Cosega mysteries and save their daughter. Pursued by enemies, they must locate the Cosegans within the Eysen-Sphere and prevent the final Divinations before their narrow window closes.

The fifth Cosega novel continues the sequence with the discovery of a source that challenges earlier understanding. Its revelations promise another transformation of humanity's view of history, carrying implications that reach beyond the past and into the future.

With the Pharaoh's Eysen in hostile hands and war approaching, Rip and Gale have only days remaining on the Terminus Clock. They must decipher clues associated with Nostradamus and Leonardo da Vinci while a traitor threatens the Cosegans.

Energy powerful enough to move mountains, enable travel to other worlds, or create catastrophic weapons brings an even more forbidden possibility. This Cosega installment follows the consequences when one man defies restrictions surrounding an act too dangerous to discuss.

The final installment of the Cosega Sequence pursues an elusive event rumored to define existence itself. Reaching that moment may reveal the secrets behind worlds and dreams, but surviving the encounter remains uncertain.

With humanity lost and time running out, one desperate possibility remains. The eighth Cosega Sequence novel turns on a switch and an alignment across existence that must occur within the span of a single breath.