The Lost and Drowned: What hides beneath the frozen Thames?

What hides beneath the frozen Thames? "An eerie, exciting and spellbinding tale, it may occasionally frighten, but absolutely delights." - Liz Robinson, LoveReading4Kids "This tale is filled with mystery, suspense, danger, and unexpected heroes. I can easily recommend this story to anyone who likes books from Dickens to Goosebumps, especially for Halloween. A great read." - Readers' Favorite Every winter, girls are going missing. Lydia, and her carefree sister, Sophie, must stay alive long enough to uncover the terrible, supernatural force that stalks the children of Rottenhall Orphanage. With the help of some strange, magical gifts, can Lydia defy the odds and survive the dangers of Regency London and overcome her nightmarish adversary?