I just ran my first session of the "Wicked Secret" scenario, the one with the Church Grim.
It was intense, very interesting, but not, at all, what I had expected. They're about halfway through the mystery, and they didn't do at all what was planned in the scenario.
They didn't meet Dorotea Skytt yet, they didn't visit the sawmill, they didn't talk to any villager except for Martha and the Priest...
They went straight to the church, talked to the Priest, then they decided they wanted to visit the cemetery. They found the corpse (one of them has a hunting dog...) and succeeded very well in obtaining information from it. They decided to use the body to lure the priest out of the church while 2 of them searched the church for clues. Again, they succeeded very well. They found the secret passage to go underground, where the Free Ones meet usually. Except it was morning, and nobody was there. They realized the Priest was framed by someone and he didn't write the note, by comparing writing samples (I had made props, and the writings were very, very similar, but they saw through it!) They decided to explore the underground caves. They stumbled accidentally on the Grim's statue, then they obtained a shovel and other tools by helping the priest to dug a grave for poor Gottfried. They returned underground with only the first of the Sacred texts, and dug the skeleton out... and took it with them... so, they were attacked by the Grim in the caves. And they were battered, but they survived, and managed to "break" the Grim. Now, they put the bones back in place, but the Grim's angry at them, and they have absolutely no clue as to how they can make it go for good.
Honestly I was afraid they would die, because they acted really dumb at first. But they managed to find a cool way out, and now I have to wait for next session to know what they will do... They have suffered multiple mental and physical conditions.
Fellow GMs, be careful, this mystery can certainly go awry!