Mission Possible

From: Detective
Description: We collected a lot of things from the Captain’s ship. It’s clear that the frigate went on a deadly expedition and was trying to find something very important. But what? We don’t have enough information to solve this puzzle. Use the City’s magic. Hopefully we will find out the mission of the Captain and his ship.
Completed: Whoa! The key that materialised in your hands has the profile of Queen Victoria on it! Was Galahard’s expedition financed by the British Crown? Well, well... Here’s the safe that the Key unlocks. If secret agencies aren’t involved, then I shouldn’t call myself a detective!