Demon's Gate (Protectors Saga Series #4)

Its been three months since the Protectors defeated the Emperor, and they're still no closer to finding the evil entity the Emperor warned them about. Only intensifying matters is the arrival of the mysterious Five, who somehow seem to share the Protectors powers, and a disturbing woman from Draven's past, who threatens to open a gateway to the Underworld and release a Demon even more dangerous than the Emperor. Meanwhile, as Avery struggles to control her feelings for Draven, Jade and Eryk continue on with their not so secret affair, until Eryk makes a shocking confession that could tear them apart forever.