The Wormhole Adventures

by P. M. Russell 

The Wormhole Adventures: Travel Is Relative introduces Barnaby, a talking raven, who stumbles upon an entry through time and space called a wormhole. He and his three new friends, Paul, Sebastian and Lynn, travel back in time where they meet the great physicist Albert Einstein. Einstein educates the children on his scientific theories. Much to the children’s surprise, Barnaby has his own fascinating story to tell.