said Phyllis, "and feed out of your hand. I wonder why Father never writes to us."

"Mother says he's been too busy," said Bobbie; "but he'll write soon, she says."

"I say," Phyllis suggested, "let's all wave to the Green Dragon as it goes by. If it's a magic dragon, it'll understand and take our loves to Father. And if it isn't, three waves aren't much. We shall never miss them."

So when the Green Dragon tore shrieking out of the mouth of its dark lair, which was the tunnel, all three children stood on the railing and waved their pocket handkerchiefs without stopping to think whether they were clean handkerchiefs or the reverse. They were, as a matter of fact, very much the reverse.

And out of a first-class carriage a hand waved back. A quite clean hand. It held a newspaper.

After this it became the custom for waves to be exchanged between the children and the 9.15.

And the children, especially the girls, liked to think that perhaps the old gentleman knew Father, and would meet him "in business" wherever that shady retreat might he, and tell him how his three children stood on a rail far away in the green