RestartIn your work for an elite spy agency you've discovered a terrible plot by Hamish Scragglethorpe (World Trivia Champion 1932-1987), to take over the world. After several months of battling with the knowledgeable fiend you've managed to break into his lair, deep beneath his small bedsit in Abingdon.

You're close to foiling his schemes, but he keeps all his plans in a nested set of boxes and filing cabinets, behind ten sets of keypads and locks and an elaborate anti-theft system involving a trebuchet, a box of wasps, and an elderly hedgehog that's no less vicious for his old age. You've no desire to force your way in. Not after last time.

Luckily for you he is very old and his memory is going, so he's left himself a series of hints. Unfortunately, being very proud of his trivia mastery (and also the sort of person who would attempt to take over the world), it's a complex system he's got going on. A corkboard covered in photos and wild scribblings, various parts linked together by a tangled mess of red string.

This isn't your first encounter with this style of memory prompt however, and while your trivia mastery may not be as good as his, you do have access to the internet. You cast your mind back to the last puzzle you solved to remind yourself.