A Thousand Fires by Shannon Price
Valerie Simons knows the gangs are dangerous—her little brother was shot and killed by the Boars two years ago. Still, nothing will sway Valerie from wanting to join the elite and beautiful Herons and find her brother’s killer. It doesn’t hurt that her best friend Matthew is slated to become a Heron leader—and she’d follow him to the ends of the earth.
Then Valerie is recruited by the mysterious Stags when their volatile, provocative, and beyond charismatic leader Jax promises to help her get revenge. Torn between old love and new loyalty, Valerie races to finish the mission that got her into the gangs. But no one truly wins the Wars.