In this second book of the classic chapter book series by award-winning author Sharon M. Draper, four boys who call themselves the Black Dinosaurs explore an old tunnel that once was part of the Underground Railroad.
When members of the Clubhouse receive a map showing an entrance to secret tunnels used by the Underground Railroad, they set out to explore, but their adventure takes a bad turn when they are suddenly trapped and must find their way out.
Can the Black Dinosaurs TM Go Back in Time to the Underground Railroad?
From a map Ziggy and his friends discover an old tunnel that was once used as a safe haven by escaped slaves.
When the boys are given a map of an Underground Railroad tunnel under their school, they find themselves trapped as the walls collapse around them. Illustrations.