A book in Alistair's secret library leads them to a mountain called Pukhansan.
There, they look at old books about the Cahill family in Alistair's secret library.
So I don't think they're secret libraries.
Before he dies, he reveals that Dracula is a scholar and has a secret library.
The popular titles on the containers were camouflage for his secret library of sick videos.
The original manual, taken from the secret libraries of one of the great nations.
"A secret library," said Pete, "and you and your mother were the big secrets."
"The other secret library behind the plaque was a decoy," Jupiter decided.
There were secret libraries, classes for the children and even a symphony orchestra.
The fees (2-4 rubles per month) were used as gratification for the teachers, and to create a secret library.