Intrigue and Ciphers

One of these stupid books I own discusses designing and breaking ciphers using Intrigue... can someone just point it to me? I've gone over Societates and Lords of Men and am getting irritated...

I don't have my books with me, but if I had to hazard a guess I'd say it was in the magi trianomae section of HoH:TL...

It is in fact HoH:TL. Ciphers are on page 20, Intrigue is detailed on page 24.

Gracias!

De Nada
I currently play a Trianomite in our Rhine saga...I really gotta use Intrigue more!