"They tell strange stories, too, the Shell People," Old Mok continued, "for they are greater story-tellers than the Cave Men are, more of them being together in one place, and the old men always tell the tales to the children so that they are never forgotten by any of the people. They say that once huge things came out of the great waters and up the creeks, such as even the big cave tiger dare not face. And the old men say that their grandfathers once saw with their own eyes a monster serpent many times as large as the one you two saw, which came swimming up the creek and seized upon the river horses there and devoured them as easily as the cave bear would a little deer. And the serpent seized upon some of the Cave People who were upon the water and devoured them as well, though such as they were but a mouthful to him. And this tale, too, I believe, for the old Shell Men who told me what their grandfathers had seen were not of the foolish sort." "But of another sort of story they have told me," Mok continued, "I think little. The old men tell of a time when those who went down the river to the greater river and followed it down to the sea, which seems to have no end, saw what no man can see to-day. But they do not say that their grandfathers saw these things. They only say that their grandfathers told of what had been told them by their grandfathers farther back, of a story which had come down to them, so old that it was older than the great trees were, of monstrous things which swam along the shores and which were not serpents, though they had long necks and serpent heads, because they had great bodies which were driven by flippers through the water as the beaver goes with his broad feet. And at the same time, the old story goes, were great birds, far taller than a man, who fed where now the bustards and the capercailzie are. And these tales I do not believe, though I have seen bones washed from the riversides and hillsides by the rains which must have come from creatures different from those we meet now in the forests or the waters. They are wonderful story-tellers, the old men of the Shell People." "And they tell other strange stories," continued the old man. "They say that very long ago the cold and ice came down, and all the people and animals fled before it, and that the summer was cold as now the winter is, and that the men and beasts fled together to the south, and were there for a long time, but came back again as the cold and ice went back. They say, too, that in still later times, the fireplaces where the flames came out of great cracks in the earth were in tens of places where they are in one now, and that, even in the ice time, the flames came up, and that the ice was melted and then ran in rivers to the sea. And these things I do not believe, for how can men tell of what there was so long ago? They are but the gabblings of the old, who talk so much."