The "Once in a Lifetime" edition represents a delicate selection stories about unique phenomena and courageous travelers. Their return is a long and intense expectation and is considered as unrepeatable as life itself.
Devoted to the concept of returning/coming back in these stories, the representative that was assigned a hero role for flying objects is the Boomerang. His qualities have earned Him a status of a symbol in these terms.
He is inevitable. He is stubborn. He always comes back.