Our hero is found in a Green Hell, at the foot of the Andes cordillera. Lee has to save his friend, Bill, who is a prisoner of the Yellow Shadow. The Yellow Shadow is still his sworn enemy, and is trying to find the Chibchas treasure - all the more reason for going into the Forbidden Forest! Lee is not short of courage and skill and he will need all he has at his disposal in order to survive in this hostile environment. Not only will he encounter Yellow Shadow's fiendish guards, but he will need to fend off strange, giant creatures all of which are to be found in this bizarre sanctuary. Not many would give Lee a cat in hells chance, but that's never stopped him before - but maybe this time it will!