Explorer Academy #6: The Dragon's Blood
Izzy Newton and the S.M.A.R.T. Squad #2 Newton's Flaw
National Geographic Birding Basics: Tips, Tools, and Techniques for Great Bird-Watching
The S.M.A.R.T. Squad #3: Izzy Newton and the Law of Cavities
Explorer Academy: #3 The Double Helix
Explorer Academy #5: The Tiger's Nest
Explorer Academy #4: The Star Dunes
Izzy Newton and the S.M.A.R.T. Squad #1: Absolute Hero
