Archenemies / Marissa Meyer.

Enhanced descriptions from Syndetics:

The Renegades Trilogy continues, in this fiercely awaited second installment after the New York Times- bestselling Renegades by Marissa Meyer, author of the Lunar Chronicles.

Now a New York Times Bestseller!

Time is running out.
Together, they can save the world.
But they each other's worst nightmare.

Nova's double life is about to get a lot more complicated:


As Insomnia, she is a full-fledged member of the Renegades, a syndicate of powerful and beloved superheroes. She works with Adrian's patrol unit to protect the weak and maintain order in Gatlon City.


As Nightmare, she is an Anarchist - a group of of villains who are determined to destroy the Renegades. Nova wants vengeance against the so-called heroes who once failed her when she needed them most.


But as Nova, her feelings for Adrian are deepening, despite the fact that he is the son of her sworn enemies and, unbeknownst to Nova, he has some dangerous secrets of his own.


In this second installment of the Renegades trilogy, Nova, Adrian, and the rest of their crew - Ruby, Oscar, and Danna -- are faced with escalating crime in Gatlon City, while covert weapons and conflicting missions have Nova and Adrian questioning not only their beliefs about justice, but also the feelings they have for each other.

The line between good and evil has been blurred, but what's clear to them both is that too much power could mean the end of their city - and the world - as they know it.

Reviews provided by Syndetics

Publishers Weekly Review

This sequel to Renegades finds Nova, a superpowered "prodigy," firmly embedded as a double agent among the Renegades (a powerful band of superheroes), covertly working toward destroying them and reviving the defeated Anarchists (a team of villains). Meanwhile, her Renegade teammate Adrian flounders, torn between the Renegade code and the unconstrained power he wields as the vigilante Sentinel, his secret identity. A new weapon capable of permanently removing a prodigy's powers offers new possibilities for both Renegades and Anarchists-and for unexpected common ground between Adrian and Nova. Meyer is fantastic with superpowers, and the best moments in the book involve ingenious or breathtaking displays of ability, as well as entertaining hints of a centuries-long prodigy history. Much of the plot, however, revolves around thin quests for empowered objects, while the narrowed focus on Adrian and Nova's deepening romance undercuts both the powers that make them interesting and the larger cast of characters. Following an exhilarating opening, the middle section treads water, never quite capturing the novelty and urgency of the first book, but the page-turner conclusion will leave readers eager for the final installment. Ages 12-up. (Nov.) © Copyright PWxyz, LLC. All rights reserved.

Booklist Review

Adrian and Nova, two teen superheroes, have a lot in common: a problematic hidden identity, a secret plan to avenge a family member's death, and a growing attraction to each other that is impossible to indulge simply because of who they are. As they navigate these complexities, they also continue their training as Renegades (law enforcement for Gatlon City) and wrestle with the ethics of a new weapon called Agent N, which nullifies superpowers forever. An omniscient narrator alternates between Adrian, aka Sketch and the Sentinel, and Nova, aka Insomnia and Nightmare, parsing out backstories, action, and emotions in a way that will hook readers. It's helpful to have read Renegades (2017) before beginning this bridge book, and a promised character list will help keep their multiple identities aligned. This enticing mix of superhero adventures and budding love story also tackles hefty ethical issues, and Meyer masterfully manipulates plot and characters to send readers racing for the last page and regret reaching it, especially when they're met by its suspenseful cliff-hanger.--Cindy Welch Copyright 2019 Booklist