In cielo, ma dove?

Two brothers are playing outdoor when they find the corpse of a little bird. Luca, the younger, is four. He is curious and smart and he wants to understand what happened to the animal. What does it mean that he went up there, in heaven? Andrea, the elder, is twelve, and doesn’t want to argue about death with a little child. But under his skin he has as many unanswered questions as his brother.