Read in any order to solve the mystery!

Triceratops Adventure Book

In this chapter book, the Subject Scouts shrink down to a microscopic size in the MicroLab on their spaceship. The MicroLab contains a terrarium full of real, live, shrunken dinosaurs! When a sneaky alien named Wixy sends the boys into the dino terrarium so they can bullfight a Triceratops, it's up to the girls to rescue them.

The Triceratops Adventure Book has a Lexile® Measure of 540L.