About the Book: Time Castaways #1: The Mona Lisa Key
Mateo, Ruby, and Corey Hudsons parents dont have too many rules. Its the usual
stuff: Be good. Do your homework. And never ride the subway without an adult,
EVER. The siblings have always thought that rule was a little silly, but they
follow it. Or at least they did until they wake up late on a school day and
their parents are out taking care of an emergency at the museum where they work.
With no other way to get to school, the Hudson siblings board the 6 train in
Manhattan . . . and