Andrew, Judy, and Thudd have escaped the dinosaurs only to find themselves surrounded by the woolly mammoths of the Ice Age! Can they locate their lost Uncle Al and travel back to their own time before the evil Dr. Kron-Tox puts his nefarious plan into action?
作者簡介：
J. C. Greenberg is the author of many books for young people in the library and reference field. She's a frequent visitor to schools and pays close attention to kid feedback. She's married to Dan Greenberg, author of The Zack Files, and lives in New York.