The Bastille of Intellect puzzles in Nightingale are little treasure vaults scattered throughout the world. Working out how to solve these will net you some loot and potentially a crafting or building diagram to use when exploring the Faewilds. The weird thing about each Bastille of Intellect is that it contains an altar with space for a Puzzle Core, but this isn't actually required to solve it.
For those only just venturing into their own realm, you might want to know how to increase your gear score so you can take on your first Site of Power. There are lots of predators and Bound roaming each realm so it's a good idea to be well prepared with weapons and equipment. Either way, here's how the Bastille of Intellect puzzles work, plus some speculation about Puzzle Cores, their intended purpose, and why they're likely bugged right now.
