[X] You decide to simply hang around the village, helping out freely and learning more in the process. Should these creatures become enemies of Nimbru at some later date, the knowledge will be worth whatever improvements to their combat readiness you wound up providing.
[X] You inquire as to if you can accompany the caravan back to its home village, and if they say no, simply follow in secret. A sample size of one is not fully informative of the shape of these villages, to say the least.