Under The Big Top

From publisher blurb:

When Dibley’s Traveling Circus comes into town, everything comes alive. Lions, tigers, elephants, seals, acrobats — it’s all here! The Dibley Twins, Marie and George, have entertained thousands for over a decade, as their father did for 30 years before that, but they are also harboring a secret. Their older brother and lead clown, Henry, is a shattered war veteran and compulsive jewel thief. Normally the circus is rarely in town long enough for Henry to be caught, but this time he robbed the wife of a prominent crime boss on opening night.