It was in St. Germain-en-Laye that Lanyard first noticed the grey touring car. But for mental selection of St. Germain as the likeliest spot for Dupont to lay in waiting, and thanks also to an error of judgment on the part of that one, he must have missed it; for there was nothing strikingly sinister in the aspect of that long-bodied grey car with the capacious hood betokening a motor of great power. But it stood incongruously round the corner, in a mean side street, as if anxious to escape observation; its juxtaposition to the door of a wine shop of the lowest class was noticeable in a car of such high caste; and, what was finally damning, the rat-faced man of Lyons was lounging in the door of the wine shop, sucking at a cigarette and watching the traffic with an all too listless eye shaded by the visor of a shabby cap.

Lanyard said nothing at the time, but later, when a long stretch of straight road gave him the chance, verified his suspicions by looking back to see the grey car lurking not less than a mile and a half astern; the Delorme touring car driven by Leon keeping a quarter of a mile in the rear of the limousine.

These relative positions remained approximately unchanged during most of the light hours of that long evening, despite the terrific pace which Jules set in the open country. Lanyard, keeping an eye on the indicator, saw its hand register the equivalent of sixty English miles an hour more frequently than not. It seldom dropped below fifty except when passing through towns or villages. And more often than he liked Lanyard watched it creep up to and past the mark seventy.

With such driving he was quite willing to believe that they would see Cherbourg or Heaven by midnight if not before; always, of course, providing...

For the first three hours Leon stood the pace well. Then nerves or physical endurance began to fail, he dropped back, and the Delorme touring car was thereafter seldom visible.

No more, for that matter, was the grey shadow. Lanyard's forecast seemed to be borne out by its conduct: Dupont was biding his time and would undoubtedly attempt nothing before nightfall. In the meantime he was making no effort to do more than keep step with the limousine, but at a decent distance. Only occasionally when, for this reason or that, Jules was obliged to run at reduced speed for several minutes on end, the grey car would draw into sight, always, however, about a mile behind the Delorme touring car.

At about seven they dined on the wing, from the hamper which, with Liane's jewel case in its leather disguise of a simple travelling bag, constituted all the limousine's load of luggage. Lanyard passed sandwiches through the front window to Jules, who munched them while driving like a speed maniac, and with the same appalling nonchalance washed them down with a tumbler of champagne. Then he discovered some manner of sorcerous power over matches in the wind, lighted a cigarette, and signalised his sense of refreshment by smoothly edging the indicator needle up toward the eighty notch, where he held it stationary until Lanyard and Liane with one accord begged him to consider their appetites.

At eight o'clock they were passing through Lisieux, one hundred and eighteen miles from Paris.

Lanyard made mental calculations.

"The light will hold till after nine," he informed Liane. "By that time we shall have left Caen behind."