The Healing of the Bull is part of the Bodhi Leaves series, published by the Buddhist Publication Society in Sri Lanka. These are very small booklets on a wide range of topics.
It is a short story of an abused bull, who tells his story to a wise elephant and gets advice on the nature of his problems, and the way out of them from a turtle. The story is about letting go of hatred and aversion and the clinging to security, which allows one to be peaceful.