Hermione had taken his hand again and was gripping it tightly. He could not look at her, but returned the pressure, now taking deep, sharp gulps of the night air, trying to steady himself, trying to regain control. He should have brought something to give them, and he had not thought of it, and every plant in the graveyard was leafless and frozen. But Hermione raised her wand, moved it in a circle through the air, and a wreath of Christmas roses blossomed before them. Harry caught it and laid it on his parent's grave.As soon as he stood up he wanted to leave: He did not think he could stand another moment there. He put his arm around Hermione's shoulders, and she put hers around his waist, and they turned in silence and walked away through the snow, past Dumbledore's mother and sister, back toward the dark church and the out-of-sight kissing gate.
~ J.k. Rowling
