"Xavier, Brad, and Yadina are off on a fossil hunt with paleontologist Mary Anning! She helps them learn that when you start something it feels good to finish it"--
When Xavier Riddle gets assigned to hand out maps in the museum--the most boring job there is--Eleanor Roosevent helps him learn to take every chance he has to help others.
"When Yadina, Brad, and Xavier are playing soccer, the ball accidentally lands on a flower patch and bends some of the petals. So the Secret Museum sends them back in time to meet real-life plant doctor George Washington Carver!"--Back cover.