The Omega: The Second Book of Cataclysm - Cataclysm, #2

The past and present are colliding. Tony's journey back to Grace Falls was paid in blood-a steep price for a long lost key.  As the mystery of the key looms large-a symbol of Tony and Jacinda's relationship-Maynard, an old friend from Tony's past, calls upon the help from a few unlikely allies. Together they must escape the clutches of The Thirteen in search of answers.  And while the Thirteen close in, a new question has emerged-What is Jacinda? A portal into her past reveals buried secrets that change everything.
Is her repressed past now affecting the present and beyond? Tony must finally unravel the truth about the woman he loved before falling deeper into danger.