This unfiction forums thread
discusses the possibility of there being a connection with visible lines within the binding of page 123 (and apparently others) that most have never seen before. Some claim to have seen them in other books. It is pure speculation at this point, and many are passing it off as a dead end. Worth making note of.
-UserThebruce 15:05, 5 Aug 2004 (PDT)
I think I may have figured it out. I think they could be morose code, maybe, and once translating you might have to unscramble them. Maybe there are a set number of books of First Strike that have different imprints, and after translating all of them, you can find the secret message.