Books in African Adventures series

Lucy, Kal, Ellie, Matata, and of course Fupi, in helping to move a rare but dangerous antelope from the coast of Tanzania to Simba wildlife ranch, are thrown into further hair-raising adventures by the discovery of an ancient map, messages scratched on cave walls, and hidden ruins in the forest, all of which speak of a terrible bygone culture. But has that time really passed? Why does Matata find the ruins so scary? What happens in the under-water cave of the rock-cod? Who is the mysterious old man who never talks? And is the elephant-shrew quite what it seems?