For fans of The Magic School Bus and Magic Tree House, new friendships, mysterious forces, and an island adventure awaits in The Bridge to Sharktooth Island as you delve into the mechanics of bridge-building fun!

"This story introduces three fifth graders forced to use their individual strengths and talents to work together and problem-solve their way out of trouble. Estroff's clever prose helps readers think, plan, and create with STEAM (science, technology, engineering, art, and math). These are perfect for a technology-focused classroom and lessons, as well as adventure-loving students. Expressive illustrations throughout the chapters help readers to see the models as they are envisioned by the characters. Fun additions at the end of the story include shark facts, Leonardo da Vinci-inspired experiments, and instructions for readers to create their own truss bridge. This is a great STEAM-infused addition to the fiction section of any elementary or middle school library."
--School Library Journal

"[The Bridge to Sharktooth Island] could provide a useful support for teachers and parents to involve children in STEAM and an engaging context for further STEAM and technological 'design and build' problem-solving."
--Primary Science

One minute Daniel and his cousin Joy are playing in the snow--and the next they are stranded on a mysterious island surrounded by sharks!

Where are they now and how did they get here? And how will they get back home?

With new friend Kimani, the kids find clues to these and other mysteries. To escape the island, they have to work together and build a bridge to safety!

This thrilling adventure is packed with fun STEAM activities you can do at home: build your own bridge, mix up a blue slime ocean, and design ferocious paper sharks.

From the world's #1 STEAM (Science, Technology, Engineering, Arts, Math) education enrichment program, Challenge Island(R) presents an exciting new adventure book series for smart, curious kids.