[Illustration: Skin bag with pull string]

One day when the berries were about gone, Thorn saw a great herd of reindeer going by.

"Oh, look at all the reindeer, grandfather!" he cried. "Where are they going?"

"When summer comes," said Flint, "they go to a colder country; and when summer ends, they come back to the cave country."

There were many reindeer in the herd, and their antlers looked like a forest of trees without leaves. A big bear with hungry eyes was following the herd.

That evening a young hunter made a picture of a beautiful reindeer with his head among the grasses. Another hunter made a picture of two deer that he had killed, and two live deer. Still another man made a handle for a knife. He carved it from bone. It was like a deer springing. The antlers were laid back on the neck, and the front legs were turned under the body; the hind legs lay along the handle.

"Good!" said the other men as they looked at it.