A treasure is lost in a dark land. The only way to find it is to journey into the heart of darkness.
Caj of Lingala. Brave. Sharp. Curious. He is an elephant rider. His elephant is every bit as smart, and even more likely to get them into trouble. Amid the wild lands, Caj and his elephant Mjok must fend for themselves. The treasure they seek is surrounded by the Bone People. How can this group of misfits slip past the savages and take back the treasure? How strong is the bond between a boy and his elephant? Only friendship can overcome in the end. Or can it?