He is now drawing a dragon on the margin of his proof.
“No.”
Xavier's mouth twitches.
“I think he solved it.”
I swear loudly in French.
Pierre looks up.
“Maman.”
“Sorry.”
“You said the bad one.”
“I know.”
Xavier looks far too amused.
I point at him.
“This is your fault.”
“My genetics alone didn't produce this.”
“I was normal.”
He looks at me.
I reconsider.
“Comparatively.”
“Better.”
Pierre pushes the stylus aside.
“Can I have a biscuit?”
I stare at him.
“You just solved a twenty-year mathematics problem.”
He shrugs.
“I'm hungry.”
Xavier reaches for his phone.
I grab it.
“No.”
He looks at me.
“What?”