For centuries, war has been brewing below the surface of New York.
People known as the soulless - immortal humans with strange powers -
have threatened life on the surface. The Dark Queen seeks revenge for a
crime long forgotten and wants to rule the world. Eighteen-year-old
Riley Stark - a new recruit in the Sentinels, a military group that
protects Earth from the Underworld - thinks she's joining for the right
reason. As a child, she narrowly escaped an assassination attempt on her
life, and has wanted justice ever since. After Riley goes snooping
through her records, she finds the terrible truth - her ancestor was
Mira Stark who killed the famous Dark King, and the soulless have wanted
her family's blood spilled. When Riley falls in love with a soulless boy
she's been taught to hate, she realizes that she can't trust anyone -
soulless or otherwise.