Her eyes were bright with excitement. She had no sense of fear. She was exhilarated by the sense of rapid movement. The launch, indeed, was travelling at a remarkable pace. In the narrow channel between the islands and the town, the river must have been running at nearly ten miles an hour, and the engines were probably adding another eight. In the wide spaces of the ocean eighteen miles an hour may appear a safe and controllable speed, but this little launch was running down hill, she could not be stopped at command, and the restricted course was beset with many and dangerous obstacles.

Thrale, handling the little brass wheel forward, was conscious of uneasiness. The launch steered after a fashion, but he had little control of her. The trees on the banks appeared to be flying upstream at the pace of an express train, and ahead of him was the town bridge.

He decided instantly that they could not pass under it, and put the wheel over, intending to shoot out of the stream into the calm of the flood water over the new open bank. But as the launch turned and came across, the current took her stern and turned her half round. For a moment her lee rail was under water, and she trembled and rocked on the verge of capsize. Then her engines drove her out of the stream and she righted herself again and began to cut through the almost still, shallow flood water.

“Stop her!” roared Thrale.

“I say, what’s up?” replied Eileen, coolly, as she obeyed the order.

“No room to pass under the bridge,” said Thrale. “I suppose we’ll have to navigate, as you call it. Go dead slow, and be prepared to stop her at a moment’s notice.”

They spent over an hour in finding a passage round the approach to the bridge. They had laboriously to pole the launch through the tops of hedges, and in one place they were aground for ten minutes. But after they had returned to the stream once more they had a rapid and easy passage down to Bray. They shot the great arch of the Maidenhead railway bridge triumphantly. Eileen said it was “glorious.”

The weir at Bray proved even more difficult to negotiate than the one above, and by the time it was fully opened the dull December afternoon was closing in.

They spent that night moored to two of the elms that ring the isolated little church in the meadows by Boveney.

“At this rate,” remarked Thrale as they settled themselves for the night, “it’ll take us a week to get to Richmond. We’ve done two weirs out of thirteen, so far.”