Treant Grove

From publisher blurb: Treant Grove is a Fifth Edition plug-in adventure for four characters with an average party level (APL) of 8, 11, 14, or 17. This addon offers a general guideline on how to scale the adventure for each level. The plants of a magical forest have suddenly turned against the elven village located within its trees. The characters must clear out the village and figure out what caused the plants to attack.