Just hired adventurer to reveal hidden stuff (10 mechanics). I got blade part from hidden room, but can't spot secret in west carven below glowing crystals. According to walkthrough there should be one.
PS Don't judge :D. I just used guide on this level, because i spotted secret room, but couldn't find switch. It was so frustrating that i went for help online. So i was standing near "button", but it wasn't showing up... after some search iv found out that mechanics is responsible for spotting :/ not perception (blind engineer will see every trap!)