Twice We Make Magic

Sisters Spel and Egg grew up in Mistress Mouldheels' for Wicked Girls believing they were the daughters of criminals, until they discovered the truth:

They are witches.

And after always being in the shadow of her big sister, Spel discovered that she was a Shadowborn Witch - the only one who can step between portals to other worlds.

Now in a coven with their mates and part of the alliance against the Hunt, the sisters try to master their new powers. But the Hunt is rising, the witches are in danger and when a new portal opens the whole world is under threat . . .