The reason is, there is a water-spirit haunts this valley--and a wicked wight they say he is--who takes delight in mischief and witcheries of this sort.

But I have learned a charm; and if you will let me whisper it in your horse's ear, he will stand just as quiet as my silver greys there." "Try your luck, then, and help us as quickly as possible!" said the impatient knight.
Upon this the waggoner drew down the head of the rearing courser close to his own, and spoke some words in his ear.

The animal instantly stood still and subdued; only his quick panting and smoking sweat showed his recent violence.
Huldbrand had little time to inquire by what means this had been effected.

He agreed with the man that he should take Bertalda in his waggon, where, as he said, a quantity of soft cotton was stowed, and he might in this way convey her to Castle Ringstetten.

The knight could accompany them on horseback.