Drink deep - Chloe Neill

Clouds are brewing over Cadogan House, and Merit the vampire can't
tell if this is the darkness before the dawn, or the calm before the
storm. With the city itself in turmoil over paranormals and the state
threatening to pass a paranormal registration act, times have never
been more precarious for the vampires. If only they could lay low for a
bit...

Then magic rears its ugly head when Lake Michigan turns black. The
mayor insists it's nothing to worry about, but Merit knows a panic is
coming. She'll have to turn to friends old and new to find out who's
behind this, and stop them before it's too late for both the vampires
and humans.