Ebony and Ivory.

[It is protected by more arrays than you can imagine. So, you should forget about taking any part of it.] The system burst its bubbles.

"Back to the topic. How do we get out of here?" Castiel reminded them of the reason they were there.

They looked around and saw nothing in the room except for a podium right in front of the gigantic thranium crystal.

"Well, we might as well try that out." Blake walked up to the podium and tried injecting his mana into it, but nothing worked.

(AN: I know you might be wondering why the core is so chilled out even though intruders were standing right in front of it. Well the question will be answered soon.)

Not wasting more time, Blake went straight to the point and brought out the journal. Immediately it was activated, the podium lit up connecting the journal to the core.

The journal's holographic interface popped up showing a message.

[Do you want to open the stasis pod?]