The story follows the Trippertrot children—Mary, Tommy, and Johnny—who encounter a peculiar little old man after being left alone by a little old lady who went to fetch a policeman to help them get home. The old man offers to take them home himself, suggesting they might have some fun along the way. The children, intrigued by his kindness and the promise of adventure, decide to go with him. As they leave, the little old man writes a thank-you note to the old lady for her kindness, which the cat guards until she returns. Meanwhile, the policeman reassures the old lady that the Trippertrots are known for getting lost but always find their way home. The old man leads the children to a beautiful garden and playground, filled with swings, hammocks, and sandboxes. The children enjoy playing in this magical place, building sandcastles and exploring the garden's wonders. The old man promises to find their home and take them back once they finish playing. While the children are having fun, the old man discovers the address of a little lost girl named Jack, who had been with them. Her father soon arrives to take her home, expressing gratitude to the Trippertrots and the old man for their kindness. As the old man continues to search for the Trippertrots' home, their nursemaid, Suzette, arrives, having been looking for them. She scolds them for running away but is relieved to find them safe. The children explain they got lost while helping the little girl, and Suzette thanks the old man before taking them home. Their mother is overjoyed to see them, and the children promise not to wander off again, though the story hints at future adventures.
By Howard R. Garis · First published 1917 · Genre: Children's Literature, Fantasy, Adventure