THE LONELY SKULL: Book 4 of the Dangerous Adventures Series

Embark on an extraordinary adventure with Max and Hillary as they journey to the summit of Africa's majestic Mt. Kilimanjaro, tasked with returning a stolen chimpanzee skull to its rightful resting place.

When Max's Great Aunt uncovers a hidden vault containing a century-old chimpanzee skull taken from the mountain's 19,340-foot peak, she entrusts Max and Hillary with the mission of laying it to rest. But this is no ordinary expedition - the skull holds a secret that has remained buried for decades.

As Max and Hillary prepare for their trip, Max's mother and grandmother decide to join them, adding an unexpected twist to the adventure. Max must carefully guard his extraordinary sensitivity to animals, a gift he has yet to reveal to his mother, who grows increasingly suspicious.

Amidst the breathtaking landscapes and the company of rogue bull elephants and a mighty momma lion with cubs, Max and Hillary confront a series of mysteries. Why was the chimpanzee skull found alongside bull elephant remains at such a dizzying height? What prompted these animals to undertake such a perilous climb together? And what secret is Hillary harboring, one she promises to share with Max only upon reaching the summit?

Robby Robertson's novel is not only a thrilling tale of discovery and self-revelation, it is a true-to-life mountain adventure. Robby has himself been on a walking African safari and climbed Mt Kilimanjaro.

Buy The Lonely Skull now to learn Hillary's, Max's, and the skull's secrets!