When Steinvor reached the church every one was astonished to see her, and asked how she had managed to get across the Quivering Flood. But when the priest heard the story, he called Steinvor aside, and said:
"Mind and do not say too much about your new man; do not talk about his strength, and set folk a-wondering who he may be. I have my own opinion, and I think you will do well to house him, and say nothing to anyone about his being in any way remarkable."
And now there comes into the saga of Grettir a story which is certainly untrue, but how it comes in can be made out pretty easily.
The real truth was, as the saga writer confesses, that Grettir remained hidden at Sandheaps all that winter, and no one in the country round knew that he was there. But then, the saga writer did not feel satisfied with such a dull winter, in which nothing happened; so, to fill out his story and say something interesting, he worked into his history a wonderful tale. The story, which I tell in my own words, is this:—
The Story of the Stream-Troll
There is on the Quivering Flood some miles below Sandheaps a mighty foss, or waterfall. The whole river pours over a ledge in a thundering, magnificent cascade. The stream in the middle is broken by an island. You can hear the roar of the falling water for a long way around, and see the spray thrown up from the fall like a cloud or column of steam rising high into the air. This waterfall is called Goda-foss, and was long supposed to be the finest in the island; but there is another, which I was the first to see, on the Jokull-river, called Detti-foss, which is infinitely finer, but which is in a region of utter desert of sand and volcanic crater, many miles from any human habitation.
It happens that there is a curious black lava rock standing near the river, higher up than the fall, which bears a quaint resemblance to an old woman, and this stone is called The Old Hag; and the story goes that it is a troll-woman turned to stone.
Now, you must know that throughout Norway and Iceland, and, indeed, wherever the Scandinavian race is found, a superstition exists that every river has its spirit, that lives in the river; and it was held that these river-spirits demanded a sacrifice of a human life, at least once a year. If a sacrifice were not given to them, then they took some man or woman, when crossing the water, and carried the victim away. And in heathen times there can be no doubt whatever that human sacrifices were offered to every river; generally an evildoer or a prisoner was thrown in and drowned, to propitiate the Stream-churl, as he was called, so that he should not snap at and carry off other and more valuable lives. Wherever there was a cataract, there the Stream-churl was believed to live, hidden away behind the curtain of falling water. If the stream was small, then this spirit or demon was small; if, however, it were a mighty river, then the spirit was a great troll or giant. Even to this day in Iceland and Norway, the ignorant and superstitious believe that there are these Stream-churls, and tell stories about them, and cannot but suspect that, when anyone is drowned, it is the Stream-churl exacting his toll.
Now, it is quite certain that Steinvor, although she was a Christian, believed in there being a great Stream-churl living under Goda-foss; and as she had lost her husband and one of her servants who had been drowned in the Quivering Flood, she held that they had been carried off by the Troll of the waterfall.
There had been, as it happened, something mysterious about the death of Steinvor's husband. Two years before Grettir came to Sandheaps, on Christmas-eve, he had disappeared. She had gone off to see some friends at a distance, and when she returned home next day she heard that her husband had not been seen—he was gone, and not a trace of him remained. It occurred to her that in all probability he had gone across the river to church, and had been carried off by the river—that is, by the Stream-churl. But she could be certain of nothing, and she was greatly distressed because she could not give his body burial. A year passed and not a word about her husband could she hear. His body had not be found anywhere washed up by the river, supposing he had been drowned.