Pollution Problem

Steps

 * 1) Clean up the pollution by killing 5 manifestation of pollution found in the lower water pool.
 * 2) Gather cleansing water from the water sprite (right-click).  Do this from 5 times from different water sprites.
 * 3) Use the cleansing water and cleanse 5 tainted treespirits (right-click).
 * 4) * One tainted treespirit is at the others are around
 * 5) Return back to the Treespirit Elder