Lion by the Lake

 is the 25th book in the Animal Ark book series, written by Lucy Daniels, which was first released in 1997.

Summary
A working holiday in Africa means the trip of a lifetime for animal-lover Mandy Hope. She can't wait to see all the animals in the wild!

The first day of their holiday, Mandy and James spot a lion-cub down by the lake. But there's no family nearby - has he got lost? With angry farmers stalking the lions that are killing their cattle, the cub is alone and in danger...