About Margot Griffin Margot Griffin and John Burden previously collaborated on the first two books in the Meggy series, Dancing for Danger and Secret of the Crystal Cave. Books by Margot Griffin The Dance of Life A Meggy Tale by (author) Margot Griffin contributions by P. John Burden Ages 10 to 12 Grades 5 to 7 Secret of the Crystal Cave A Meggy Tale by (author) Margot Griffin illustrated by P. John Burden Ages 10 to 12 Grades 5 to 7 Sleepover Book, The by (author) Margot Griffin illustrated by Jane Kurisu Ages 8 to 12 Grades 3 to 7 Dancing for Danger A Meggy Tale by (author) Margot Griffin illustrated by P. John Burden Ages 9 to 11 Grades 4 to 6