Played this a Gen Con. Worst experience I have ever had with PFS. We had a party of 2 level 4s, a level 2, and a level 1. GM only allowed us a Knowledge (Arcana) check to identify the cards. We all failed. So we had failed the mission almost immediately. All of the bad can be blamed on the GM on this, though a bunch of level 1s could have a hard time making DC 18 knowledge checks. Our GM just left us to run around, and gave us no hint we were wasting our time. We never knew about the Unicorn diner (or whatever it was called), and spent 2 days waiting for the enemy to show up at the play. She then kills and NPC we didn't know existed and we lose. Of course he tried to say we could have asked anyone about the cards, but we actually asked multiple times to get pointed to any harrower. I would love to give this scenario a review, but we didn't see enough of it for me to do an honest review.
Sounds like your GM made a big mistake. There are more ways than knowledge (arcana) to learn about the cards. Even if you guys failed all of the possible knowledge checks, your GM should have given you hints to get you to at least one location. NPCs could have helped you figure out what the other cards mean.
It's a fun scenario. I ran it four times at GenCon. I'm sorry you had such a horrible experience and wish you'd been at one of my tables.
Original tweet here
Wolfgang Baur @monkeyking
Other 2014 releases: Iron Gods AP, and then Giant Slayer AP! Straight up fantasy. More in an AP seminar tomorrow. #paizocon #
11:27 PM - 5 Jul 2014
Part 4: Valley of the Brain Collectors, by Mike Shel
Part 6: The Divinity Drive, by Crystal Fraiser
lasers and robots and radiation and gravity suits and nuclear resonators and atom guns and neurocams and K-lances and heavy weapon harnesses and robojacks and thoracic nanite chambers and graviton generators and more