Platinum Bearer is right, the Druid in the forest trains Rangers. If you picked up the quest about lucky charms, that will trigger first before getting the "Always Happens" choice to train.
Octavianus, for the Slaughtered Lamb (hope you got the reference!) there is a special item you need in order to get the information that would satisfy the quest. I don't want to outright spoil it. Figure there is someone in the tavern who would know some stuff, and what might interest him. That's pretty vague, but if you want more details just let me know.
Also, based on your comments last night, I am adding a little more to the Thespar quest line. I had planned to develop it further in the next chapter, but I see now it is cruel to tease a little cloak and dagger intrigue and not follow through.
Hans, I had not thought about an in-game reason for beefing up the MR. It was simply a selfish DM decision because I hated seeing "tougher" enemies succumb to a 1st level sleep spell and be killed in a helpless sate. Now make it so there's only a percentage chance it might work, and it's a different story!
Thanks for all the feedback, very useful and gratifying.