sentences:  Then Gagoola appears and taunts Umbopo, who pursues her through the caverns.As Bockner and his men arrive next, Quatermain and Jesse flee for safety, but end up in the cavern's treasure chamber, which is full of raw diamonds and other priceless treasures.As they gather some of the diamonds to take with them, Bockner hears their voices from outside the chamber, but before he can enter, Gagoola activates a hidden rock switch and seals Quatermain and Jesse inside the chamber.