Straightening my legs on horseback was an act of pure will, I found. It was no easier in the ungainly crouch which came natural to me. I was probably making it harder for myself. But I found it such a relief to be within grabbing distance of the skewbald mane. Then:

‘Straighten up!’ Robert would yell again, and I would force myself to stand tall and even to look straight ahead with my chin up instead of gazing longingly at Bluebell’s broad back.

The act we planned would have me skipping and then jumping through an open hoop on Bluebell’s back. Then Jack, dressed in fustian breeches and gaiters, would come out from the back of the crowd like a drunken young farmer and demand a turn. At first I was supposed to refuse and turn my head away from him, at which Jack was to take a run from the far side of the ring and vault on to my place, pushing me off the other side.

Often we cracked heads, occasionally we would bounce off each other and fall back, off our own sides. Bluebell was excellent and stood as steady as a rock, even when Jack went up and I failed to drop off and we clung to each other and howled with exhausted laughter.

Then I was supposed to try to carry on with my act while Jack vaulted on to the horse. As long as I stayed well towards the tail and out of the way we were in little danger of collision. Jack vaulted on and ended up facing the tail, then he spun himself around so that he was facing the head, but both his legs were the same side. Then he lay flat on his back, his legs and arms on either side of the cantering horse. Then he spun around like a sack of meal. In the finale he crawled all around under Bluebell’s belly and then under her neck.

We practised it so often that we grew skilled and quick at it but it did not seem funny to us. We only realized how good it would be in the show when Dandy and Katie finished their practice early one day and came over to watch us, and actually collapsed on to the grass they were laughing so loud.

Robert, who had stood in the centre of the field for day after frozen day, had looked very thoughtful at that and had wandered off chewing on the stem of his pipe muttering to himself: ‘Lady and the Jester, the Girl and the Tramp, the Clowns on Horseback.’

Next day he had a sign-writer up and spent a long time with him in the stable yard while I worked the team of ponies in the paddock and Jack and Dandy and Katie practised in the barn.