The path will be forged in sweat and blood. Rune, Grey, the shape-shifter Beltran, and willful vampire, Verida, set out to rescue their friend and mentor, Tate, from the gladiator games. But first they must navigate the perils of Eon and its warring factions. Each of this band of four carries with them a secret that threatens to tear their group apart from within. Rune now bears the mark of the promise she made to save Grey's life--a nixie bubble...