Sienna Nealon has spent the last several years of her life working for the US government, policing people with powers beyond those of a normal human. Now she's come to the end of her government career, forced out by the powers that be...but not before she's called to Chicago to investigate one final murder. Then another. The deeper she gets into the investigation, the more mysteries Sienna unravels, and the more questions she's left with, until what began with a killing in an alley starts to look like a threat to the entire world...

What makes a hero? For years, Sienna Nealon has worked with the U.S. government to protect the world against other people with powers beyond those of a normal human. But after several clashes with the current administration, she finds herself with a new employer, an independent agency dedicated to helping stop threats to humanity. When a new hero and villain rise in New York City, Sienna can't help but get involved, even as the U.S. government sends its own response team, led by an old friend...and a new enemy. Soon, Sienna finds herself once more against the odds, against the government, ...

For months, Sienna Nealon has been targeted by enemies that have hounded her at every turn, destroyed her reputation, and finally, struck at those dearest to her. Operating from the shadows, this mysterious group has never dared to show their faces in their quest for revenge against her. Until now. After crossing the final line, now her enemies have left themselves exposed for the first time, and Sienna will stop at nothing to drag them out into the daylight. Because while this may be her enemies' first time playing for vengeance, it certainly isn't Sienna's...

When Kat Forrest is nearly killed in Los Angeles by a man with powers and a mysterious grudge, Sienna Nealon doesn't think twice before coming to save the day. But as the threat grows nearer, old tensions between Sienna and Kat rise to the surface, and caught in the middle is Scott Byerly, a former flame of both of them. Will Sienna be able to put aside her grievances and save Kat from her attacker – and possibly herself – in time?

Sienna Nealon is a woman with powers far beyond those of a normal human. As head of the unit in charge of policing others with abilities like hers, she has fought more battles than even she can count. But after a case gone bad, Sienna ends up suspended from her job, cooling her heels on Bayscape Island, a picturesque town in southern Lake Superior, seeking a peace that she finds illusive. For even on vacation nothing goes right for Sienna, and soon enough she's drawn into a mystery that sweeps away any hope of peace, replacing it with fear, distrust and a looming calamity that no one could ...

What makes a hero? For years, Sienna Nealon has worked with the U.S. government to protect the world against other people with powers beyond those of a normal human. But after several clashes with the current administration, she finds herself with a new employer, an independent agency dedicated to helping stop threats to humanity. When a new hero and villain rise in New York City, Sienna can't help but get involved, even as the U.S. government sends its own response team, led by an old friend...and a new enemy. Soon, Sienna finds herself once more against the odds, against the government, ...

In a world of people with powers, Sienna Nealon has long been the one who maintained the order. But now she finds herself on the other end of the law, cast out and abandoned by her friends. On the run, hunted by relentless and implacable foes, she will face her greatest challenge – an enemy who holds a seat of power so great that even Sienna may not be able to stand up to him.

Sienna Nealon is the most powerful person in the world. She's beaten every enemy that has ever come at her, faced threats of every conceivable kind and bested all of them. But when a new threat raises its head, one dwelling deep in the belly of the internet, she finds herself far, far out of her depth, and in need of help from an old friend in order to stop a new enemy bent on causing damage of a kind she's never before seen.

For months, Sienna Nealon has been targeted by enemies that have hounded her at every turn, destroyed her reputation, and finally, struck at those dearest to her. Operating from the shadows, this mysterious group has never dared to show their faces in their quest for revenge against her. Until now. After crossing the final line, now her enemies have left themselves exposed for the first time, and Sienna will stop at nothing to drag them out into the daylight. Because while this may be her enemies' first time playing for vengeance, it certainly isn't Sienna's...

“Guy Friday is a hemorrhoidal pain in my a-” Sienna Nealon doesn't need any complications. On the run from the law, trying to carve out as much of a life for herself as she can, the last thing she needs is the idiotic Guy Friday pounding on her door one night, wounded and begging for help. But helping people is part of who Sienna is, and soon she's embroiled in the fight against an assassin with the power to seemingly appear and disappear at will. Hunted all over the United States, Sienna must protect Friday as the two of them explore his past in order to reveal the unbelievable secret ...