Carl nestled himself more or less into Baldr's lap and opened the book, flipping through the pages. He paused on one with the picture of a man with only one hand.
"That's my dad. Tyr. He looks different there, but that's him. He's super brave. Put his hand in a wolf's mouth so the other gods could tie up the mean wolf. The wolf wasn't happy, and he bit off Dad's hand."

He looked up at Baldr.
"He's your brother. That's why you're my uncle."