by trzewik
Wiet in most cases is 100% right.According to mysteries and tokens with numbers. When you explore tile with mystery, you may put '1' token, then when other mystery is explored you can put there '2' token so you can easily know which mystery effect was already revealed.
Difficulty - you can play wigout a dog in 1 player variant or without friday (but with a dog instead) in 2 player variant.