Paradise Damned - The Descent Series, #7

Elise Kavanagh is being held captive without weapons or allies. The only way out of the garden is to kill God Himself. James Faulkner's son has been taken by Metaraon, but James is caught in Limbo and helpless to save him. An army of half-angel, half-demon hybrids is converging on the gates of Heaven, where the Union prepares for a final battle. The end has arrived.