This book was written by Baron Kognoy of Kaypong himself (or rather by his sorcerer in the Baron's name). It concerns the creation of the mighty Sentinels.

I am afraid that I cannot let you read the book, after all, if I let you read through everything I have I would have nothing left to sell to you and it is most rare. For those articles and books which I am happy for you to browse through please ask me for my recommendations.