Join Emma and Brody on their adventure through the Crystal Cave as they leap from modern-day West Virginia to England in 1775 to find a sample of the rare Blue John Fluorite. If you loved the novel Blue John's Cavern, keep the excitement rolling with this activity book!In this activity book kids will enjoy:Crossword, Word Search and Hidden Message Puzzles, Fun Facts Behind the Story and Locations, Details about the Rocks and Minerals in the Story, Experiments to do at Home, Online Scavenger Hunt, Character Details and Secrets, Write-Your-Own Story Activities, and Story Quizzes. Blue John's Cavern is the first book in the middle-grade adventure/sci-fi series Crystal Cave Adventures. In the novel, teenagers Emma and Brody live an ordinary life in Diamond Falls, West Virginia until one day when their neighbor, a famous geologist they call Mr. M, shows them the wildest time of their lives.When Mr. M's prized rock and mineral collection is destroyed before it can be displayed at the state museum, Emma and Brody jump at the chance to find new samples. The geologist accepts the offer, and promptly sends them back to the year 1775 to help!Back in time and across the pond in Derbyshire, England, Emma and Brody team with a mysterious young girl named Max to recover one of the rarest minerals in the world: Blue John Fluorite. Tapping into courage they never knew they had, the formerly ordinary West Virginians must protect a cave, avoid gun-toting soldiers, and return to the present before they're trapped forever. The adventure may be fiction, but the Blue John Fluorite and the locations in the novel are real. Through this activity book, you will love discovering the interesting facts and science behind the exciting story. If you like a little excitement thrown in with your science, then you'll love Tracy Diane's fast-paced and exciting series.