If such a river-bed were dry, what would it be?
Have you ever seen a ravine? Is it anything like a cave?
If the roof of a cave fell in, what would the cave become?
If the sides of a ravine became worn down, what would it become?
Think of ways in which the cave might be flooded when the snow melts in the spring.
Do you know anything about the floods that we have nowadays?
The Flood
Winter was almost gone.
The air was getting mild and soft.
The snow was beginning to melt, and the river was rising.