Weapons blueprints

Exploration Stage: Collector's House
From: Huntress
Description: What shall we do? In such cases, we usually look for them in the archives of the city. The city is home to some talented inventors. Their ideas can be useful. The jokes of the guides actually work too. It's not funny, though. The power of the magnet paralyzes the gargoyles. That's what it takes!
Completed: Look here. A magnetic paralysis cannon! The inventor's name is not given, but the note says it was designed to immobilize knights in their armor. It's a strange idea, but it's exactly what we're looking for!