His old man is going to know for sure and he'll tell my grandfather!

"And you'd told your grandfather that you thought he was your father."

She told my grandfather, and he didn't want to believe me, either.

"You will absolutely tell your grandfather," he said firmly, his big hands on the boy's round shoulders.

After this, Jack tells his grandfather that he is going to be a great-grandfather.

Please tell my grandfather that he, too, must return at once.

If we can't, we can always tell my grandfather about it.

If you look at me again that way I shall have to tell my grandfather.

You'd better let me go or I'll tell my grandfather on you.

"We'll tell your grandfather you're safe and in good hands."