The blue pearl

Once there there was a little fish it had a very tiny speck of sand in its fin then it left it at a dark cave the fish took good care of the sand then one day the sand turn into a blue pearl because in the beginning the fish took good care of it but then one day the fish got eaten by a shark that wanted his blue pearl so after he killed the fish he went in side his cave and stole his blue pearl but when the days past the blue pearl turn into sand bit by bit until it vanished