100 Things to Find, See and Hear in a Forest (PFRPG) and It Lives! Muhahah! are available to buy from DriveThruRPG and RPGNow.
100 Things to Find, See and Hear in a Forest (PFRPG) has 100 different encounters for adding descriptions to a forest journey, some potentially dangerous, as flavour, adventure hooks and distractions. This is an adaptation of the system-neutral 100 Things to Find, See and Hear in a Forest for the Pathfinder game.
It Lives! Muhahah! is a short adventure in which characters can investigate the disappearance of several people and the screams that were heard coming from the house of the local magistrate.