Man-Eater (Extreme Adventures #6 )

"Fourteen-year-old Sam is at a youth conference in Africa when the bus takes off without him, leaving him stranded. Within minutes he's attacked by an angry elephant and half-blinded by a spitting cobra. A young Masai tells Sam he needs medical attention--fast. But the only way to the hospital is through the Chui Hills. The same hills being terrorized by a ferocious, man-eating leopard"--