Then a very curious thing happened. At first it seemed nothing. But to the watchers outside Nieuwpoort it had the same effect as a flash of lightning would have in an apparently cloudless sky. It began with Nicolaes Beresteyn drawing his horse close up to the Stadtholder, on his Highness's right. Then for another few seconds the two riders went along side by side, like one black speck now, still quite distinguishable through the fog. Socrates and Pythagoras had their eyes on Diogenes. But Diogenes did not move. He was frowning, and his face had a set and tense expression. He had his horse tightly on the curb, and appeared almost wilfully to fret the animal, who was pawing the wet, sandy ground and covering itself with lather — a picture of tearing impatience.
"What do we do now?" Pythagoras exclaimed at last, unable, just like the horse, to contain his excitement.
"Wait," Diogenes replied curtly. "All may be well after all."
"In which case?" queried Socrates.
A groan of disappointment rose to a couple of parched throats; but it was never uttered. What went on in the mist on the road to Utrecht, four hundred yards away, had stifled it at birth.
The Stadtholder's horse had become restive. A simple matter enough; but in this case unexplainable, because Maurice of Nassau was a splendid horseman. He could easily have quietened the animal if there had not been something abnormal in its sudden antics. It reared and tossed for no apparent reason, would have thrown a less experienced rider.
"The brute is being teased with a goad," Pythagoras remarked sententiously.
That was clear enough. Even in the distance, and experienced eye could have perceived that the horse became more and more unmanageable every moment, and the Stadtholder's seat more and more precarious. Then suddenly there came the sharp report of a pistol. The horse, goaded to madness, took the bit between its teeth, and with a final plunge bolted across country, away from that strident noise, which, twice repeated at intervals, had turned its fretfulness into blind panic.
It was at the first report that Socrates and Pythagoras again glanced at their leader. A gurgle of delight escaped them when they caught his eye. They had received their orders. The next moment all three had dug their spurs in their horses' flanks and were galloping over sand and ditch.
Diogenes' horse, given free rein at last, after the maddening curb of awhile ago, was soon half a dozen lengths ahead of the others, tearing along with all its might at right angles to the direction in which the Stadtholder's panic-stricken animal was rushing like one possessed. That direction was Ede.
