The Case of the Concert Crasher

International superstar Élise is hosting a special event as part of her 2022 World Tour: an invite-only fundraising concert in the auditorium of her old high school. The benefit is set to raise over a million dollars for the music program at this school and others. Dozens of celebrities are attending and rumour has it the Prime Minister will be there too.

But a routine security check has revealed an attempt to sabotage the concert... Can you crack the codes to neutralize the threat and save the day?

Difficulty level: 4 out of 5