C651 The Nine Children of the Realm Emperor

Zhang Lieh pondered for a moment.

That's right. There was a Realm Emperor in this world, so the information he knew was naturally from the Realm Emperor. All the information and secrets were naturally gathered in the palace.

The Ninth Prince thought for a moment and said, "But I can't bring anyone into the palace at will, let alone the library. Of course, if it's the prince's teacher