23 Hours

In just 23 hours, vampire hunter Laura Caxton faces her toughest challenge yet while incarcerated in a maximum-security prison filled with dangerous inmates. Surrounded by murderers and death-row convicts, she discovers that the world’s oldest vampire, Justinia Malvern, poses an even greater threat as she preys on the prison population. With time running out and an unyielding ultimatum in place, Laura must navigate a perilous gauntlet of vampires and criminals to survive.