In this life, Tom Riddle was too busy hustling to capitalize on every opportunity the Tournament afforded him to spend even a moment looking for the Chamber of Secrets. He had interviews to give to the press, Ministry officials and various other influential wixen to wine and dine with Slughorn’s aid, and a Tournament to win. On top of that, he still had classes to attend, Prefect duties that couldn’t be ignored, and OWL exams to prepare for – while the other Champions didn’t have to worry about exams, Tom would need his OWL results to get a job after Hogwarts. He couldn’t skip them.