Combat Rock by Mick Lewis

Combat Rock features the Second Doctor as he travels to an exotic alien island with his companions Jamie and Victoria. unfortunately they find a series of murders as 400-year-old tribal mummies return to life and go on the rampage. The Doctor and his companions must brave a jungle holocaust with ferocious cannibals and deadly beasts while civilised locals are reverting to long-forgotten head-hunting practices.

There is something causing this call to savagery, something that can only be found in the deepest darkness at the heart of the hostile rainforest.

It could well be the end of the river for the Doctor and his companions as they find themselves involved in a horrific jungle conflict between desperate guerrilla tribesmen and merciless colonial forces. Cannibalism could be the least of their worries as evil stirs the pot and the dead reach for the living...