Orphan Molly Moon was found as a baby in a box marked 'Moon's Marshmallows'.

For ten miserable years she's lived under the cruel rule of Miss Adderstone in grim Hardwick House. But her life changes overnight when she finds a mysterious book on hypnotism and discovers an amazing talent - the power to make people do anything she want them to. Escaping from the orphange, Molly flies to New York in search of fame and fortune. But her adventures in hypnotism lead her into the clutches of a dangerous enemy . . .