Robert J. Crane

Still haunted by her last encounter with Wolfe and searching for her mother, Sienna Nealon must put aside her personal struggles when a new threat emerges....

Two years after the explosive Girl in the Box series ends, Sienna Nealon is called to London, England, where she is drawn into a murder investigation involving an old friend....

Far from home, having failed in her quest to kill Old Man Winter, Sienna Nealon finds herself in the city of London, working with Omega, her oldest enemies....

A rich, character-driven fantasy with Lord of the Rings-like adventure and the fraught political tension of Game of Thrones. Get ready to lose sleep.

Sienna Nealon seems like a woman beaten. Imprisoned by her enemies and facing the extinction of her entire race, she is up against overwhelming odds. But overwhelming odds have never stopped her before....

The world of Arkaria is a dangerous place, filled with dragons, titans, goblins and other dangers....

Just hours after finding Andromeda and crossing paths with her mother, Sienna Nealon finds herself back at the Directorate and up against a bigger threat than ever before....

In the aftermath of her confrontation with Sovereign, Sienna Nealon finds herself low on allies. The organization Century continues their genocide unchecked, working toward an ultimate goal that they have yet to reveal....

Time is running out for Sienna Nealon. The mysterious organization Century is only weeks from wiping out her entire race. But just as Sienna has made the decision to fight them, her past catches up to her and she finds herself in the hands of the US government....

Locked away in her own home for 12 years by a mother hiding dark secrets, 17-year-old Sienna Nealon has never known the outside world. That changes when she wakes to two intruders in her house, forcing her to break every rule she's lived by.

Locked away in her own home for 12 years by a mother hiding dark secrets, 17-year-old Sienna Nealon has never known the outside world. That changes when she wakes to two intruders in her house, forcing her to break every rule she's lived by.

When the government intercepts a message that has links to his past, Reed finds himself stirred into action....

Sienna Nealon is a broken human being. Her lover is dead, her closest friends have deserted her, and her employers have betrayed her....

Omega - a shadowy organization that is synonymous with power in the metahuman world. They have hunted Sienna Nealon since the day she first left her house, have killed countless Directorate agents and operatives, and now they unveil their greatest plot....

After six months of intense training with the Directorate, Sienna Nealon finds herself on her first assignment - tracking a dangerous meta across the upper midwest....

When a mission in New York goes terribly wrong, Sienna finds herself replaced as head of the government agency in charge of policing people with powers beyond those of a normal human....

Sienna Nealon is a member of an endangered species. One of the last remaining people with powers beyond those of a normal human, she has taken it upon herself....