Lydia Adamson: Dr. Nightingale Rides the Elephant (USA 1994)

From the Publisher:
A country vet gets a circus for a client... and an animal act that's a real killer. Shortly after Dr. Didi Nightingale becomes the vet on call for a small traveling circus, an extremely gentle elephant goes berserk and kills a beautiful dancer before a horrified crowd. Determined to save the beast from a bum rap, Didi is walking the high wire between compassion and murder.

Lydia Adamson: Dr. Nightingale Rides the Elephant. Signet, ISBN: 0451181344 (July, 1994), 201 p., $3.99.