I reach up, bringing my hand to Alex's face. It only takes a moment for me to find the bump on his forehead, and though he doesn't make a sound when my fingers brush against it, I feel him stiffen, so I know he must be experiencing some pain as well.
"Your lump is pretty big," I say, "but I still think mine is bigger."
"On the contrary, I think mine is." His finger traces the edge of my bump. "You definitely have the harder head."
"What are the symptoms of a concussion again?"
"I don't know," he says. "Maybe we should look that up."
"Well, if anyone asks, you were already a bit wonky in the head."
He laughs. "Me? I could tell them some stories about you - "
"Hey," I say. "You better not be talking about anything we put in the friendship vault of silence."
"I wouldn't dream of it."
