Fluxion (The Vampires of Vegas Book IV): Reign of Blood Book 4

The past always returns to haunt you.

April is on cusp of distributing a successful treatment for the vampiric virus which decimated the world's population. When she's betrayed by those she trusts the most, she's forced to flee her home in Las Vegas. Now, she must depend on a stranger she just met who shares the same rare mutation as her. She can't trust anyone. The vampire hive was her sanctuary, but now, their leader hides an unspeakable horror with far more sinister consequences than anyone could've imagined, especially when it involves April's unusual abilities.

Time is running out as she hurries to avoid the clutches of a new clever foe, save her friends, and rid the world of the deadly scourge forever. But the price of success is far too steep. Will the consequences of saving everyone else finally be enough to break her, or will she embrace the full power of the monster lingering beneath her skin?