Marie Swanenburg, also known as Good Mie, is a poisoner and serial killer who was caught one evening in 1883. She intended to serve her cousin and son-in-law a poisonous substance, only this went wrong. As a result, she had to leave her beloved Leiden as soon as possible. Will you help her to find the secret exit?

Choose your starting time with your teammates, beginning at anytime day or night. Make your way across the city, checking off tasks to find all the clues you need to reach the secret passage. As you search for clues, marvel at the beautiful sights of the town.
Walk past the Pieterskerk, wander through the lovely streets and keep an eye out for the many historic buildings in the city center.
Work quickly, and you and your team could set the record for the fastest tour. Good luck!