Did you see that? Ashildr asked Anubis.
Yes, Mee. This resembled a holographic projection of a security feed. I did not know they had these in the Trust. This is Nilian technology.
... so the Trust stole this from you?
Yes, apparently they did. But it is not what we are looking for. I did not know of this before.
Both fell silent and tried to sort their thoughts. If this was a recording of some kind it must have been old. Clara and Caten must have found this entrance not long ago. Or maybe it was long ago? Ashildr remembered the years she had read on the TARDIS console - it was 2125 now and it was 1925 when she had lost her companions. So it had been 200 years since Clara went down into this secret chamber! But her notes read as if she was right here...
Let us find out what they are hiding down there. They entered the combination they had learned from Clara's projection.
Down a short flight of stone stairs, a dimly lit room was waiting for them.