All along the banks there were mountains of snow and ice.
Huge masses of floating ice were carried along by the current.
The Cave-men were watching the swiftly rising river.
They feared that there might be a flood.
The children were playing in the melting snow and wading in the water.
Sharpeyes had just come from the ravine.
This ravine was usually dry in summer, but in winter it was filled with snow.
Now it was a deep, dark stream, with black and threatening water.
All the ravines were pouring their waters into the river, which was rising rapidly.