"I think that a boat had better go either way, without a moment's loss of time," Rupert said. "But I doubt whether either will find them. But send the boats without a moment's delay, with orders to overhaul and search every craft they overtake."

The magistrates at once called in an officer of the guard, and gave him the necessary instructions.

"And why do you not think that either up or down the river they will overtake them?" Van Duyk asked Rupert, as the officer left the room.

"Because they will know that a fleet horseman will pass them; and that by morning the people at the towns on the banks will all be on the lookout for them. So, having sent off the boats, I should now send off horsemen up and down the river, with a letter from you, sirs, to the authorities at all the towns, begging them to stop and search every boat."

Again the necessary orders were given.

"It was right to take these steps," Rupert said, "for they may be greater fools than I take them to be; but I think that they have done one of two things. They have gone either up or down the river to some place, probably not far away, where horses are in readiness, or--or, they may be still in the town."

"Still in the town!"

"Yes," Rupert said; "they will know that we should pursue them up and down the river; that we should scour the country round; but they may think that we should not suspect that she is still here. There must be lots of secure hiding places in an old town like this; and they may well think it safer to keep her hidden here until they force her into marriage, or wring a fabulous ransom from you."

"We will search every house," the burgomaster said, "from cellar to roof."

"It would be useless," Rupert said. "There must be secret hiding places where she could be stowed away, bound and gagged perhaps, and which you could never detect. I would lose no moment of time in sending out horsemen to every village on either side of the river above and below us, for a circle of twenty miles. If horsemen have passed through, some villager or other is sure to have been awoke by the clatter of the horses. If we get news, we must follow up the traces wherever they go. If not, it will be strong proof that they are still here. In any case, our pursuit all over the country will lead them to think that we have no suspicion that she is here, and we shall have far more chance of lighting upon a clue than if they thought we suspected it. Get trusty men to work at once. Question the prisoners your men have taken, with some sharp pain that will wring the truth from them; but let all be done quietly; while on the other hand, let the chase through the country be as active and public as possible."