Black Key

Where
• Object: Machine Device
• Location: tha_t09 19,158

How to get it
Black Key is a Thanatos Tower progression item used to open the black seal.

Step by step
1. Reach the stage where your other keys/charm stones are ready for machine activation.
2. At Machine Device input:
• Key
or
• Charm Stone
3. Choose:
• Investigate Monitor Storage
4. Receive:
• Black Key (getitem 7425,1)

Important
• After taking this key, machine activity stops; use the key next at tha_t06 by typing Black Key.