Human Body Detectives Merrin and Pearl are at it again. Their magical ability to jump into people's bodies and explore their systems (digestive immune, circulatory, skeletal, nervous systems) combines science with their fun adventures to help kids understand how their anatomy and physiology, and how to nourish it well.

In Osteoblasts to the Rescue, Merrin and Pearl examine their friend Lily's skeletal system on their journey to reach the broken bone in her arm. Along the way, they slide down rib bones, climb up the clavicle, see the fracture, and so much more. In the end, they not only learn about how broken bones repair themselves, but they get a firsthand lesson on the functions of the skeletal system.

Osteoblasts to the Rescue is one of five stories featured in the Human Body Detectives series, along with, The Lucky Escape, Battle with the Bugs, A Heart Pumping Adventure, and Brainiacs.

The Human Body Detectives series explores science with a twist-an accessible lesson about the human body presented in a fun, relatable way that kids will love. Each Human Body Detective book can stand alone or be read as part of the series.

Ideal for both the home and the classroom, these beautifully illustrated books offer activity pages as well as a glossary of terms and information about the best foods kids can eat to keep their bodies healthy. A curriculum for teachers and homeschooling families is also available for each book on the Human Body Detectives website.

Recommended for ages 6 to 10