In this unlikely story, Tiger Girl is taking her newly acquired pet zebra for a ride in the jungle, when a lion frightens the mount and it runs swiftly deep into the jungle where it is accidentally bitten by a large venomous snake. Mortally afflicted the zebra runs wildly into the jungle and falls down a ravine. Tiger Girl survives the fall, but finds herself in a strange cave, unknown to her. She is captured by some large weird looking "Tusk Men" who inhabit the cave and whose intentions are not known until she fatally stabs one of them. Then the remaining Tusk men capture her and take her into their "temple" to be used as a human sacrifice. Her Indian guardian and constant companion, Abdolla, rescues her and later she lures and taunts a large elephant to the entrance of the "temple" (the cave) where it wildly crashes into the opening causing an avalanche that closes the cave entrance up and seals the "Tusk men" to a certain death. The pics below show her captured and carried by the tusk man, then stabbing him, then caught again and dragged to be placed on one of their altars alongside the one she stabbed, where both are to be used as human sacrifices. I personally have great admiration for this jungle girl, and consider her one of the two or three top characters in the JG genre.
Source: I once owned this book