The new exhibit at the Philadelphia children's museum, Let's Play, isn't meant to be shocking-but when one of the installers is zapped with a fatal electrical charge, it's up to Nell to put her detective skills on display.
Ellie Alexander, Eve Calder, Cate Conte, Donna Andrews, Meri Allen, Sheila Connolly, Hannah Dennison, Jess Dylan, Leonard Goldberg, Carolyn Haines, Kylie Logan, Allison Montclair, S. C. Perkins & Ashley Weaver