The Diabolic
by S. J. Kincaid
Young Adult Sci-fi
403 pages
Published 2016

I really enjoyed this book. There were twists I absolutely did not see coming, and Nemesis’s confusion over whether she is truly human or not is an absorbing part of the plotline.

The book opens on Nemesis, an artificially created humanoid, as a child, being bonded to her charge, Sidonia Impyrean. The chemically-induced bonding creates an artificial love from Nemesis towards Sidonia – a love so strong she will kill and die to protect her. Many years later, Diabolics – what Nemesis is – are outlawed. Rather than kill Nemesis, Sidonia’s family fakes her death, and eventually sends Nemesis to court masquerading as Sidonia. No one has seen Sidonia before, so the masquerade is fairly easy, other than hiding Nemesis’ real abilities as one of the last Diabolics. Thrown into a world of conspiracies and courtly intrigue, Nemesis flails a little bit, but eventually finds her footing, and I can’t say anymore than that because that’s when the plot twists start!

This is one of the most surprising YA books I’ve read. I only anticipated one or two of the twists; many of the events revealed themselves to the reader at the same time that Nemesis uncovers them, which makes sense, as the book is told from her point of view.

The bond between Sidonia and Nemesis is strong and intriguing, even across star systems. I wish their relationship had been explored more. Sidonia always believed Nemesis was truly human, even when Nemesis did not. The book did not delve deeply into the actual creation of Diabolics; I’m hoping the sequel does. I’m curious if they are actually created, or if they are genetically modified humans and that’s just a closely guarded secret. (Even if they are created, they’re human in every way except their strength and endurance – I’m sure they’re simply modified in the womb. Or test tube. Whichever. I really hope the sequel gets into that.)

I have the sequel, The Empress, requested from the library, but it’s supposed to be a trilogy. I don’t know when the third is due out.

This is a fantastic, surprising YA book with interesting politics and world building. I really want to learn more about the history of this world, and hopefully the rest of the trilogy will cover that.

From the cover of The Diabolic:

A Diabolic is ruthless. A Diabolic is powerful. A Diabolic has a single task: Kill in order to protect the person you’ve been created for. 

Nemesis is a Diabolic, a humanoid teenager created to protect a galactic senator’s daughter, Sidonia. The two have grown up side by side, but are in no way sisters. Nemesis is expected to give her life for Sidonia, and she would do so gladly. She would also take as many lives as necessary to keep Sidonia safe.

When the power-mad Emperor learns Sidonia’s father is participating in a rebellion, he summons Sidonia to the Galactic court. She is to serve as a hostage. Now, there is only one way for Nemesis to protect Sidonia. She must become her. Nemesis travels to the court disguised as Sidonia—a killing machine masquerading in a world of corrupt politicians and two-faced senators’ children. It’s a nest of vipers with threats on every side, but Nemesis must keep her true abilities a secret or risk everything.

As the Empire begins to fracture and rebellion looms closer, Nemesis learns there is something more to her than just deadly force. She finds a humanity truer than what she encounters from most humans. Amidst all the danger, action, and intrigue, her humanity just might be the thing that saves her life—and the empire.