Exorcising the Trees

The Grishna have caused the leafbeards and stonebarks to be inhabited by evil koi-koi spirits.$B$BWe must save the trees or soon all of the Raven's Wood will be lost forever!$B$BCombine the magic of a Grishnath orb, found throughout Grishnath, with a dire pinfeather from a dire raven.$B$BUse the resultant exorcism feather to draw out and slay the koi-koi spirit as quickly as possible. The stonebarks are too powerful for this ritual, but if enough leafbeards are saved, they will be freed as well.