At first it was the intention of the stadholder, disappointed at learning the occupation of the Swint, to content himself with fortifying Cadzand, in view of future operations at some more favourable moment? So meagre a result would certainly not have given great satisfaction to the States, nor added much to the military reputation of Maurice. While he hesitated between plunging without a clue into the watery maze around him, and returning discomfited from the expedition on which such high hopes had been built, a Flemish boor presented himself. He offered to guide the army around the east and south of Sluy's, and to point out passages where it would be possible to cross the waters, which, through the care of Spinola, now seemed to forbid access to the place. Maurice lingered no longer. On the 28th April, led by the friendly boor, he advanced towards Oostburg. Next morning a small force of the enemy's infantry and cavalry was seen, showing that there must be foothold in that direction. He sent out a few companies to skirmish with those troops, who fled after a very brief action, and, in flying, showed their pursuers the road. Maurice marched in force, straight through the waters, on the track of the retreating foe. They endeavoured to rally at the fort of Coxie, which stood upon and commanded a dyke, but the republicans were too quick for them, and "drove them out of the place." The stadholder, thus obtaining an unexpected passage into Flanders, conceived strong hopes of success, despite the broken nature of the ground. Continuing to feel his way cautiously through the wilderness of quagmire, he soon came upon a very formidable obstacle. The well-built and well-equipped redoubt of St. Catharine rose frowning before him, overshadowing his path, and completely prohibiting all further progress. Plainly it would be necessary to reduce this work at once, unless he were willing to abandon his enterprise. He sent back to Cadzand for artillery, but it was flood-tide, the waters were out, and it was not till late in the afternoon that nine pieces arrived. The stadholder ordered a cannonade, less with the hope of producing an impression by such inadequate means on so strong a work, than with the intention of showing the enemy that he had brought field-guns with him, and was not merely on an accidental foray. At the same time, having learned that the garrison, which was commanded by Trivulzio, was composed of only a few regular troops, and a large force of guerillas, he gave notice that such combatants were not entitled to quarter, and that if captured they would be all put to the sword. The reply to this threat was not evacuation but defiance. Especially a volunteer ensign mounted upon a rampart, and danced about, waving his flag gaily in the face of the assailants. Maurice bitterly remarked to his staff that such a man alone was enough to hold the fort. As it was obvious that the place would require a siege in form, and that