As Christina and her friend Taft investigate the substance called "zoom," they discover several things: 1. Zoom can be used as fuel. 2. Orphans are being enslaved to extract zoom from mines. 3. Christina's long-lost mother may have been killed because of her work with zoom.
Spine-tingling tales of suspense and adventure compose this 14 book category-filled with both fiction and nonfiction titles. Elementary readers who thrive on a thrill will really spark to these selections.