The Taiga: After fighting the Forest Master and talking to Olga at the church, you will be able to take two paths to the Pirate camp. Take the upper path until you see a billboard to your left. Right across from the billboard there is a zipline. The note will be on a pillow next to the zipline.
Liuda, you just don't understand! It does not mean that I agree with Roman if I choose not to leave with you! He fancies himself a great leader, but not even he would have the audacity to call me or anyone else here a coward, even though we'd rather die than shoot people!
I chose to stay, because otherwise there'd be nobody to stop the bog mutants from breaking into the forest. And if they ever do, that would mean that all of our sacrifice, all our hard work, even our crimes... Everything was for naught, because those mutants would just destroy everything and urn our forest, our home, into their stinky lair.
Would you call me mad for believing that? I don't mind. I am mad, but I wish you all the luck. And I stay.