Rubin, Sarah

Alice Jones enjoys solving math problems and little mysteries for her classmates, but now one of them has asked her to figure out how a scientist who was working on invisibility disappeared from his locked lab--and solving this problem could actually lead Alice into real danger, because someone does not want him found.

Math whiz Alice Jones has cracked many codes, but when a famous scientist disappears from a locked room, she must put her detective skills to the test.

In South Carolina in 1959 Casey Quinn dreams of being a ballerina, and though she has never had the money for lessons, she follows her dream to New York City and the Martha Graham School of Contemporary Dance.