Imperial Books in Order

The Imperial series follows a sweeping science fiction romance arc built around the Carinian Empire and a loose coalition of allied worlds. The stories link together through the House of Protection, the royal family, and the humans who are pulled into their orbit.

It starts with Cassandra's Challenge, where brilliant scientist Cassandra Chamberlain and her young niece survive the destruction of Earth and are rescued by Carinian forces. Thrown into a culture of towering warriors, complex Houses, and strict duty, Cassandra has to relearn everything she thought she knew about trust and power while falling for Admiral William Zafar.

Victoria's Challenge moves the timeline forward and lets readers see the galaxy through Victoria's eyes. She has grown up among the Carinians, trained as a healer, and is finally old enough to claim Lucas, the pilot who once saved her life. Their story balances first love with the weight of trauma, survivor's guilt, and the expectations that come with being tied to a royal House.

In Jacinda's Challenge, the focus shifts to an older couple. King Jotham of the House of Protection and Jacinda of the House of Healing are both widowed and shaped by loss. A simple request for information about his son's love interest turns into a confrontation that forces Jotham to examine how he has ruled, how he has grieved, and what it would mean to open his life to someone new.

Stephanie's Challenge rounds out the core arc with a heroine who has already given everything to the Coalition. Stephanie Michelakakis was on track to become the first woman in a royal guard before an injury derailed her career. Her slow burn relationship with Nicholas Deffand, the captain of King Jotham's guard, explores what happens when two people whose lives revolve around duty try to make room for love.

Across the series, readers spend time on starships, in council chambers, and inside medical bays, but the emotional center is always intimate. Found family, loyalty, second chances, and the cost of leadership thread through each book. The Carinian hierarchy provides plenty of political tension, yet the stories keep circling back to small gestures, private conversations, and the ways partners learn to read each other's strengths.

Because the Imperial books share a wider universe with the Tornian and Kaliszian novels, there are crossovers and references to events happening elsewhere. New readers can still start here. Beginning with Cassandra's Challenge and then moving through the other titles in publication order gives a clear view of how the House of Protection, and the women who change it, grow across the series.