“But what would happen if I put on the ring?” the boy asked.“There is only one way to find out.”

“But what would have been the good?" Aslan said nothing. "You mean," said Lucy rather faintly, "that it would have turned out all right – somehow? But how? Please, Aslan! Am I not to know?" "To know what would have happened, child?" said Aslan. "No. Nobody is ever told that." "Oh dear," said Lucy. "But anyone can find out what will happen," said Aslan. "If you go back to the others now, and wake them up; and tell them you have seen me again; and that you must all get up at once and follow me – what will happen? There is only one way of finding out.”

“only one way to find out”

“If I fall out, pull this ring? What happens then? I sprout wings and fly?" -Spader in "The Never War”

“So Lightning says to Mud,“What would happen if I struck your blood?”And Mud says, “Brother, It would hurt, And make me the motherOf every living thing.But, Fire Boy, you ain’t lifting my grass skirtUntil you burn me a ring.”

“I remove my wedding rings and put them in the jewelry box. So many others have done this. I am not the only one. I am not the only one. But here, I am the only one.”