Nick and Marta are both suspicious when their biology teacher, the feared Mrs. Bunny Starch, disappears, and try to uncover the truth despite the police and headmaster's insistence that nothing is wrong.

Cousteau describes his philosophy about protecting our world for future generations. Weaving stories of his adventures throughout, he and collaborator Susan Schiefelbein address the risks we take with human health, the overfishing and sacking of the world's oceans, the hazards of nuclear proliferation, and the environmental responsibility of scientists, politicians, and people of faith. Cousteau's lyrical, passionate call for action is even more relevant...

"There are no polar bears left on Bear Island. At least, that's what April's father tells her when his scientific research takes them to a faraway Arctic outpost for six months. But one night, April catches a glimpse of something distinctly bear shaped loping across the horizon. A polar bear who shouldn't be there--who is hungry, lonely, and a long way from home. As their unlikely bond grows, April is determined to save her new friend--and so begins...