Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product. Learn about physics with fun projects and experiments Created in partnership with Thames & Kosmos, Fun Physi...

Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product. Learn about electronics with fun experiments and projects Created in partnership with Thames & Kosmos, Basic E...

Lost in an ancient Mayan city. Pursued by criminals. Can you solve 10 riddles and escape?  Nina and Luke are excited to visit their friend Ben in southern Mexico at an archaeological dig. But when they arrive, Ben’s nowhere to be found. Clues lead them into the rainforest, where they find themse...

A strange tunnel. Ten riddles. Can you solve the case and return a fortune? It’s a beautiful summer day, and Leo, Mara, and Mara’s dog Snowflake are headed back to acrobatics camp near old Volkenstein Manor. But on their way, the group stumbles upon a freshly dug tunnel that leads…to a bank v...

A spooky RV park. Ten riddles. Can you escape? Anna, Michelle, Leon, and Nick are going on a road trip. When Leon’s old beat-up car breaks down on the way, the four friends seek refuge at a run-down trailer park in the middle of the forest. But there’s something weird going on… Why is the cre...

A family legacy is in crisis. Can you solve 10 puzzles to find the treasure that will save the day?  Lily lives in the most beautiful place in the world: Summerview—a small hotel in the mountains that’s been in her family for over a century. But Lily’s parents are in financial trouble and ar...

A mysterious letter. A treasure hunt. Can you solve 10 puzzles and outrace your enemies to a lost fortune. Ryan Creed is a cryptology professor with a passion for solving even the toughest of riddles. A letter from an unknown client leads him to Seattle, where he accepts a new assignment: to find a...

A deserted fairground, a legendary killer, and 10 puzzles. Can you escape? To Mina, a party in an abandoned fairground with a mysterious past sounds like fun—so she’s totally on board. Rumors of unsolved murders at the fair just add to the thrill. But suddenly, the exits are blocked and people a...

A maze of underground tunnels. Ten puzzles that lead to treasure. Can you solve them all? Legend tells of a priceless treasure hidden in an ancient network of caves. Lucia and her best friend Anup are determined to find it. But Pierce, the class bully, has the second half of the treasure map... Can...

A creepy mansion. Ten puzzles. Can you get out in time? For generations, rumors have circulated about the lakeside ruin of the old Tennison mansion. It’s said that on foggy, moonlit nights, the spirit of the late Catherine Tennison glides across the waters of the lake. No one has successfully ent...

A sinister private hospital. Ten challenging puzzles. Can you uncover the truth? Bruised, dazed, and confused, Simon wakes up in a hospital bed. What happened to him? Why can’t he remember anything? As Simon starts to piece together past events, he uncovers clues that lead him to question the str...

Here is a collection of eleven Stirling engine projects, including five new groundbreaking designs by Jim Larsen. Now you can build simple pop can Stirling engines that look sharp and run incredibly well. The air cooled pop can engines will run for hours over a simple candle flame. Unlike most pop c...