The Zills family is off to Paris to see the sights and take a class at the International Pastry Academy! In class, Matt and Bibi have to measure liquids to make lollipops. It’s hard work, but knowing about different liquid measurements comes in handy when the Inspector General pays a visit while everyone else is out. The twins want to help. Will their knack for baking the best-ever brownies and their knowledge of capacity be enough to save the day?
The Zills family is summoned to Egypt to help find the hidden burial chamber of an ancient pharaoh. But when Matt and Bibi get trapped in the pharaoh’s pyramid, they stumble upon an even bigger mystery. With only each other, their dog Riley, and the geometric hieroglyphics on the walls to help them, the twins must use their math skills to locate the burial chamber—and the way out. Luckily, Matt and Bibi know their stuff when it comes to geometric solids, and so will the readers of this adventure in math!