The tumblers fell into place and the metal door to the vault unlocked with a click. And then all the alarms went off.

Apparently, while I didn’t need a key to open this door, I did need it to do so quietly.

I planted my forehooves on the heavy metal door and, straining, pushed it open. (Something I almost certainly couldn’t have done if I wasn’t hyped on Buck.) I stepped into the darkness beyond and focused, increasing the light of my horn to illuminate the room.