A missing animal at the zoo and strange noises coming from her backyard can mean only one thing for Tori: she's got a mystery to solve! Tori loves living on Zoo Lane with her family. Who else gets to live at a zoo--and with her cousin Sumiko visiting from Tokyo soon, this is shaping up to be the best summer ever! But when rumors of a missing animal start to spread, Tori is on the case . . . except she doesn't know which creature is on the loose. An ostrich? A little frog? There's also a strange noise coming from her backyard. It almost sounds like someone is calling her name! Tori is on the case. In this second book in the illustrated series, two-time Newbery Honor author Patricia Reilly Giff has crafted a charming story about conservation, animal care, friendship, and problem-solving. In touch with the programs and initiatives that today's zoos are undertaking, Giff provides readers with a fresh look at the work of zoologists. Charming line artwork by Abby Carter appears throughout and keeps the story upbeat.