The Little Black Fish was widely considered to be a political allegory, and was banned in pre-revolutionary Iran (prior to the 1979 revolution).
The story is told through the voice of an old fish speaking to her 12,000 children and grandchildren. She describes the journey of a small black fish who leaves the safety of the local stream to venture into the world.
The path of the little fish leads down a waterfall and along the length of the river to the sea. Along the way, the fish meets several interesting characters, including a helpful lizard and the dreaded pelican.
With both wisdom and courage, the fish travels far and the tale eventually ends with the Little Black Fish setting a lasting example for others.