“No; I am making about two-thirds of the other’s speed.”

“Then don’t do any better, is my advice,” said the detective.

Alvin glanced over his shoulder.

“Why not?”

“It may be wise at this stage of the game not to let them know that you can surpass them. Wait till the necessity arises.”

“I agree with Mr. Calvert,” added Chester, and the Captain was impressed by the logic of the counsel. He was on the point of increasing the pace, but refrained. In truth he was already wondering what they would do if they overtook the other and what could be gained by passing the boat.

Again the whistle piped several times and it was evident that the fugitive, as it may be called, had “put on more steam.”

“Do you wish me to let her get away from us?” asked Alvin.

“Not for the present, but that may be the best course. Hold your own for awhile and then gradually fall back.”

When the race opened, less than an eighth of a mile separated the contestants. The abrupt burst lessened this slightly and then it appeared to be stationary as the two glided down the river.