Even in the Darkest of Times

It has been a long time since Cassie and her family have been together. Even Gabe has been far from her reach.
The Darkness had nearly ripped them from her, and the Leaches are continuously hunting them down, but now they are finally together. They are a team, but Cassie feels hollow. Something--no, someone, is missing.
She vowed that she would search for Kale. She has promised to fight his demons with him, but things have changed. Time has changed them all.
Can she risk losing everyone she cares for to fulfil her promise to Kale?
Does she have the strength to fade into the Dark and unlock the Heavens, so that Light can blossom?
There's only one thing she knows for certain-- her memories are not whole, there are secrets being kept from her. She needs to find Kale before she loses him to the Darkness for all of eternity.