Threat of Magic by Linsey Hall

Evil has escaped, and only I can stop it.

Finally, I’m getting control of my magic. Thank fates, because I really need it. The ancient Greek Titans have escaped their prison in Tartarus, and their dark magic is filling up the earth, causing violence and despair to spread through humanity. We’re running out of time before the planet is thrown into deadly chaos.

I’m the only one with the skills to find and stop the Titans, and I’m going to need every bit of magic I can master. Locating them will take me on a deadly journey through the Underworld. With the gladiator Maximus at my side, we have a chance, but only if we risk it all.