Four orphans are shocked when their beloved friend, sculptor Siegfried Eckleberger, is murdered. As they investigate, they find clues that his death may be tied to the murder of a rich New York heiress as well as to their own past.

Spending the summer after seventh grade at his great-uncle's oceanside museum, Thatcher and local girl Trudy team up to help Shoal, one of the people of Atlantis cursed by a witch whose head still survives, and who has an army of monstrous creatures helping her.

In this third book in the exceptional Curiosity House mystery series by bestselling author Lauren Oliver and mysterious recluse H. C. Chester, four children must uncover the evil Nicholas Rattigan's newest dastardly scheme, wage war with a rival freak show, and deal with a spy who may have infiltrated their happy home. Sam, Philippa, Thomas, and Max have just started to recover from their capture and subsequent escape from Rattigan. But the children's...