Sirius chances upon Regulus' N.E.W.T. certificate while cleaning up Grimmauld Place. It is the 'E' for Transfiguration that catches his eye—Regulus was never adept at the subject. He wonders where Regulus acquired friends who helped him with his schoolwork.
"Oy! James! Are you ready?" Sirius inquires.
It is the Friday before their N.E.W.T.s, and they have both been looking forward to sneaking out to Hogsmeade.
"I'm really sorry, Sirius," James replies. "Peter just asked me to revise Transfiguration with him tonight. You know what his Transfiguration grades are like."
He wonders how Lord Voldemort tempted Peter to betray James.
