The Uncaring City
The world has not been cared for a long time.
The city was empty but the next minute it was crowded in a traffic jam. The city bearly had cars and houses look similar.
The beach is under the uncared city. The people were busy doing stuff on the beach and they didn't notice the lost thing.
The Lost Thing
The Lost Thing was a red mechanical machine who was on the beach and The Lost Thing was lost.