But Garrick had guessed right. Sure enough, at a cross road, the other car slowed down, then quickly swung around, off the main road.

"What are you going to do?" I asked Garrick quickly. "If we turn also, that will be too raw. Surely he'll notice that."

"Going to stop," cried Garrick, taking in the situation instantly. "Come on, Tom, jump out. We'll fake a little tire trouble, in case he should look around and see us stopping here. I'll keep the engine running."

We went back and stood ostentatiously by the rear wheel. Garrick bent over it, keeping his eye fixed on the other car, now perhaps half a mile along on the narrow crossroad.

It neared the top of a hill on the other side of the valley across which the road wound like a thin brown line, then dipped down over the crest and was lost on the other side.

Garrick leaped back into our car and I followed. He turned the bend almost on two wheels, and let her out as we swept down a short hill and then took the gentle incline on high speed, eating up the distance as though it had been inches instead of nearly a mile.

A short distance from the top of the hill, Garrick applied the brake, just in time so that the top of our car would not be visible to one who had passed on down the next incline into the valley beyond.

"Let us walk up the rest of the way," he said quickly, "and see what is on the other side of this hill."

We did so cautiously. Far down below us we could see the car which we had been trailing all the way up from the city, threading its way along the country road. We watched it, and as we did so, it slowed up and turned out, running up a sort of lane that led to what looked like a trim little country estate.

The car had stopped at an unpretentious house at the end of the lane. The driver got out and walked up to the back door, which seemed to be stealthily opened to admit him.