The Mortalis Books in Order

Centuries into humanity’s expansion, Marion commands hundreds of colonies and a vast military force. New enemies threaten the alliance’s long peace, forcing her into battle while old wounds and the costs of prolonged life continue to haunt her.

A shuttle journey between colonies sends Marion through a wormhole into nineteenth-century America. Stranded far from her own era and pursued for her futuristic knowledge, she must survive capture and find her ship to return home.

Marion leads an expedition to colonize distant worlds for people whose lives are extended by a special plant. Political betrayal, personal loss, and an approaching alien threat challenge her command and the promise of living for centuries.

Commander Marion Stefanova returns to the nineteenth century to prevent a grandfather paradox and protect her loved ones. Seeking Major Thomas Conrad, she must confront whoever is behind attacks on her family before the past endangers their future.

Cockerham explains the Christian ideas underlying his Mortalis novels, including extended mortal life, resurrected beings, and colonization beyond Earth. He connects the series’ healing plant and other worldbuilding elements to biblical passages and interpretations of the millennium.