(4) YA Sophie travels north from København, Denmark, with her sweetheart, Mikael, to ask Alfred Nobel what he knows of her parents' death. She learns that their fate is entwined with that of a Snow Queen–like nuclear physicist who has psychically wounded Mikael. In this alternate history that evokes 1930s northern Europe, cumbersome prose muffles a promising premise and a colorful setting.

Reviewer: Deirdre F. Baker

(3) YA Makers of Modern Science series. These revised editions detail the accomplishments of two pioneering scientists, as well as the physics and engineering fields to which they made major contributions. The books place science in cultural and political contexts, examining the roles each man played during World War II or the Cold War, and the ethics of their decisions. Black-and-white illustrations and photographs are included. Reading list, timeline, websites. Glos., ind. Review covers these Makers of Modern Science titles: Niels Bohr and Wernher von Braun.

Reviewer: Danielle J. Ford

(3) 4-6 Great Minds of Science series. In readable prose, the author explains Bohr's contributions to quantum theory and other concepts of chemistry and physics, as well as his loyalty to his native Denmark, his humanitarian work for Jews in WWII, and his advocacy for the peaceful use of atomic energy. A few experiments end the book, which is sparsely illustrated with black-and-white photos and diagrams. Bib., glos., ind.

Reviewer: Frieda F. Bostian