|Sasha aka DM Stephen|
Nim, they are also a religion, following a god like many others. I imagine a number of groups may try to kill you to get the notes or stop you from getting to Saventh-Yhi first. The Mantis haven't kept me in the loop on all of the information they have been gathering though. I am sue they will reveal themselves soon, they don't want to be too late getting to the dinner table.
@ Mihai, Until you pose a direct threat to the Mantis they probably will not bother you. They would rather you ally with them so they can get to the city first but they can almost as easily follow you to the city and then try to get what they want. At this point I would be more concerned about groups that are less...subtle.