This is a BBC Radio 4 full-cast dramatisation of Philippa Pearce's enchanting children's tale starring Una Stubbs and Crawford Logan. These audio editions, especially dramatised for BBC Radio, are of timeless stories that have enchanted generations of readers both young and old. The wonder and excitement of these much-loved tales live on in these acclaimed full-cast dramatisations, complete with evocative music and sound effects. When his brother catches measles, Tom is sent away for the summer to stay with his uncle and aunt - and is thoroughly fed up about it. What a boring summer it's going to be. But then, lying in bed one night, he hears the old grandfather clock in the hall strike the very strange hour of thirteen o'clock. What can it mean? As Tom creeps downstairs and opens the door, he finds out...a magical garden, a new playmate and the adventure of a lifetime.