[X] A great tapestry as long and thick as the trunk of a tree, vibrant with qi. On the floor is a small chest, slips of white jade glitter within. All around it are shelves holding thick volumes. One title catches your eye. A Complete Genealogy and Accounting of the House of Tsu.
I am voting for this for many layers. Some of which have been discussed. Others... well, let's say I hope you have your tinfoil hats ready because it's going to be a ride!
Layer Zero: I love Weilu stuff. I love the world-building, I love the history, I love the mystery. I'm petal to the metal with Nitro in the fuel tank for Weilu stuff. The more of it there is, the happier I am.
Layer One: This will be beneficial to the mission. It further demonstrates and provides more evidence of the connection between the Ice Nation and the Emerald Seas and demonstrates who, still, might have some of that connection. Blood is thicker than water, after all, even if diluted through the generations.
Layer Two: This will help in our over all mission of diplomacy in the Emerald Seas. Knowing more about the history of the Who's Who's will enable us to impress, deflect, and maneuver around a society built upon generations of deeds and legacy.
Layer Three: This could give the Cai's more legitimacy over all, being able to trace back, or create a path back, to the first rulers of the Emerald Seas. For the Cai, more legitimacy is better, especially when dealing with the traditionalists who are pushing back against needed reform and development.
Layer Four: This could help with the greater goal of the Cai in creating a unified Emerald Seas. To stop the squabbling of the clans and the breaking apart of the region, you need something to unify them. It is unlike that this is the silver bullet, but it certainly will help with the goal by pointing to similarities and commonalities between the Clans.
Layer Five: This is an Accounting as well as Geneology. As such, it might have details of where a Tsu died, which could point us in the right direction for more Weilu tombs and ruins. Exploration ahoy!
Layer Six: Beyond Limbo, further than any have gone before. Turn back now you without tinfoil hats or risk losing your mind! If the Weilu corpse that stirred with our training of LFotWT is within these books then we could learn his name and deeds. Then, should he pop out again, we can impress him and delay him with our extensive knowledge of his genealogy and deeds, buying us valuable time to plan an escape route or for our allies to arrive.