One of those heroic players even put together a helpful little walkthrough and threw it up on Imgur for the rest of us:
According to Imgur user Nightswifty, you have to read the pages in order or else they won't appear in the world.
Don't expect to get much info from clues such as "... of sea, spirit and self..." and "... the wind, the eye...". And if you have an actual copy of World of Warcraft: Chronicle Volume 1, the in-game pages also refer to pages in the real-life book, which also shed a bit more light about the clues.
But it was still extremely difficult, considering the players could only pinpoint rough guesses of locations and had to spend a lot of time covering every inch of suspected zones in order to find the tiny pages.
Nightswifty emphasized that this hunt was a team effort, giving credit to the World of Warcraft secret-finding Discord channel.