Six New Forest ponies are given to six children for a year. During that time they have to break them in, and at the end of it there is a competition to see who has done best. But who will win; June Cresswell whose matelpiece is stacked with silver cups; John, who cannot get any one to help him till his mother comes gallantly forward; the Radcliffes who shout and quarrel and live in the whirl of a big family of all ages; Susan from the ugly red house on the hill; or scruffy, self-conscious Noel?

In this sequel to 'Six Ponies' the team, a little older now, are joined by new characters and new mounts. They have adventures both pleasant and unpleasant during the two weeks they spend with Major Holbrooke schooling their ponies for a dressage competition, but meet all that comes with infectious good humour.

Set on Henry’s home turf, he and Noel decide to start a Riding Club. The set of characters is mostly new, but the problems that beset them are the same.

Mrs Van Cutler's opinion is worth having, says the Major to his nephew, Henry. But Mrs Van Cutler did not like Henry's dressage test, not at all. "Oh lord," said Henry. "Have you ever seen so many fours?" Major Holbrooke offers to do a course for Henry and the Pony Club to improve their generally dismal performances, but it will be an eventing course and not just dressage. And at the end, there will be a One Day Event. The Pony Club members tackle this in their usual fashion. Christopher is convinced he already knows it all; Noel is convinced she knows nothing and never will. June is allergic to any mention of the forward seat. Evelyn charges round at full and lethal speed, sure that a good hunting seat will get her through, and whatever she does, it has to be better than Marion, who is too scared to venture out of a trot. But at the end of the course, everyone, no matter who, has to do that One Day Event.

For the Pony Club Members it's the high spot of the summer. Out come the tents and sleeping bags and torches. Into boxes go grooming kits, headcollars, mugs and plates, haynets, pyjamas and buckets. Children and ponies arrive in one glorious great confusion as camp begins at last. The first night is full of surprises! A week of mounted games, jumping, schooling, picnic rides and midnight feats is crowned by the Pony Club Gymkhana - and some very surprising results.