by Megan Stine; Illustrated by David Groff. by Stephanie Spinner; illustrated by David Groff. by Nico Medina; illustrated by David Groff. by Megan Stine; illustrated by Tim Foley. by Megan Stine; illustrated by Dede Putra. by Megan Stine; illustrated by Ted Hammond. by Jim Gigliotti; illustrated by David Groff. by Megan Stine; illustrated by Laurie A. Conley. by Megan Stine; illustrated by John O'Brien. by Bonnie Bader; illustrated by David Groff.