You'll start next to Trafalgar Square where you will be sorted into three groups of up to four people each. I will explain the rules and roll a dice. One team will start as a runner team, whose objective is to earn coins and evade capture, and the other two will start as the chaser team. The chasers’ objective is to catch the runners by tracking their location and hunting them down. As the runner team, you will travel across London, from St Paul’s Cathedral to Battersea Power Station. You'll complete a series of cards containing challenges that your team must overcome in order to earn points. As the chaser team, you will hunt down the runners. You can see their location, but not what they’re doing or where they’ll go next. They get a 15 minute head start, but if you can catch them, you get a turn as the runner team. There will be an hour lunch time about half way through the event, and at the end we will all meet up.