Hephaestus Vestige Part A
Location: Crypt Spire – Crypt Spire Entrance
From Hephaestus Vestige Part C, exit the room on the east side and head up the ladder at the end of the path to reach a circular platform. Cross the long walkway and enter the circular room with a lever outside at the end. The vestige will be found on the other side of the room containing the elevator under some wooden crates.
Hephaestus Vestige Part B
Location: Crypt Spire – Crypt Spire Entrance
From the Crypt Spire Entrance mistle, take the flight of stairs leading up and follow the path forward until you reach a small circular room with a corpse against the right wall. Head straight to reach the ladder (a shortcut that you have to find) and climb up it. At the top of the ladder, take the spiral stairs up then exit the room to come to a circular platform with a hole in the middle. Take the flight of stairs on the left and follow the path through a circular room with a chest in the middle. Defeat the two large enemies and exit out the entryway across from the chest. Keep following the path forward, arriving at a circular room with lots of pillars. Defeat all the enemies that spawn here. Exit the room via the northwest doorway and head up the stairs, passing the room with the lever outside of it. This will bring you to another platform with a ladder on the left and a room with a lever outside it on the right. Take the right path to enter a hallway. At the end of the hallway, you will enter a big circular room with a small circular room inside it. After the small circular room, take a left and follow the path out of the big circular room through a hallway. Keep following the path until you come to a circular room with a lever outside of it. Enter this room and use the elevator in the center to head down to a ledge. Exit the elevator and turn right to find this vestige in a glass cylinder.
Hephaestus Vestige Part C
Location: Crypt Spire – Crypt Spire Entrance
From Hephaestus Vestige Part B, head back in the elevator and take it up. When you exit the elevator, take a right and head out the doorway on your left. Follow the walkway up a flight of stairs to a circular platform. Take the stairs on your left up and head across the walkway into a small circular room. Keep following the path until you reach a big circular room with a lever outside and a lever in the center of the room. The vestige will be located in this room to the right of the lever. You will also be jumped by enemies in this room so be prepared.