Don’t go in the attic!

Out of the 100 rules their grandparents gave them to follow, that one was the most important, so of course, it was also the first one Hazel’s six-year-old sister, Bess, decides to break. Hazel cannot believe she has to be in charge of her crazy little sister this entire summer. What could be worse for an eight-year-old who always follows the rules?

But she never expected Bess would accidentally uncover a dark family secret that involves a hidden time machine and their mysterious, and grumpy, grandpa.Just when she thought her summer couldn’t get any worse, Hazel finds herself stuck in the time of Colonial America, trying to keep her sister under control while also trying to make it back. She quickly finds out that she and her sister are going to have to work together to figure it out, and that maybe, that’s not such a bad thing after all.