A small army of ants wanted to cross a river but there was no bridge over the water. Grandpa Big Tree gave them a small leaf. Then came Little Rabbit. She took out a mushroom from her basket and handed it to Little Ant. When the mushroom was in the water, it got soaked and slowly became bigger. Soon the mushroom became a mushroom boat. Little Ant hoisted the small leaf to the stalk of the mushroom as a sail and they set off to cross the river.