The Witching Hour

SHORTLY AFTER THE INITIATION OF THE NEW GUARDIAN OF THE FOX, WAR IS DECLARED ON THE OBSERVATORY BY SPIRITS FROM THEIR PAST

You didn't think the Observatory was the only Coven on Earth, did you? No, witches have been around for centuries. But what happened to the Daughters of Time is a mystery to everyone... until now. The moment the Observatory has all its witches back, spirits suddenly appear throughout the building to declare war on them. 

Can Seren take on this challenge without her friends? And why are the spirits so interested in Grace? You'll find out all that and more in ‘The Witching Hour’!