Orphan Hannah Albury, 15, the engagingly demure yet plucky heroine, has always been drawn to the ocean. Hired as scullery maid by the Hawleys, a wealthy Boston family, she embarks on a journey to understand and fulfill her destiny. Hannah is attracted to the family’s mysterious porcelain vases depicting sea creatures and even more so to Mr. Wheeler, an artist hired to paint the three Hawley daughters. He in turn hungers for and recognizes in Hannah what she doesn’t yet grasp. Meanwhile, the Hawleys’ psychotic eldest daughter, Lila, and her demonic cat, Jade, see Hannah as a threat; as she deciphers the secret of her identity, Hannah must ward off their perhaps supernatural attacks. The novel, first in a projected series, at first offers its early-20th-century history lesson in overly painstaking detail, especially the domestic staff hierarchy. Once Lila, Jade and Mr. Wheeler show up, the plot becomes gripping. A good bet for upper middle-grade and early YA readers. (Fantasy. 12 & up)