The Horror of Raven's Briar Orphanage (Dead Souls Book 10)

Determined to rescue Anna, Kate and Jennifer set off on a journey to the infamous Raven's Briar Orphanage. They soon discover, however, that the orphanage is well-defended, and that an entire army awaits them. Fortunately, they also learn that they might not be alone...
Meanwhile, Estella frantically tries to save her dreams. With Edgar turning away, she realizes she might still have one chance of true happiness. The more she tries to save herself, however, the more she moves toward her ultimate role as the dreaded Witch of Thaxos.
Dead Souls - originally released as a serial - is an ongoing horror series. Each book ends on a cliffhanger, and readers are highly advised to read the series in order.