Escape from 15th-century Doesburg during this exhilarating tour. Get to know Abraham Derksen and help him find Doesburg's secret passages. Abraham Derksen worked in the famous Gosen Momme mustard factory. He was an important employee because he knew the recipe for te mustard! Johan Jansen wants the recipe. He offers Abraham a few drinks and at the end of the evening, when Abraham had too much, he told Johan the recipe. Now Abraham is terrified of his boss. 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 through the beautiful streets of Doesburg 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!