Visit Black Water Lake in Nektulos Forest. ( -462, -3, -993 ) Copy/waypoint -462, -3, -993
Return to re-interview Harold Winemaster.
Visit Behemoth Pond in Nektulos Forest and find the discarded poison bottle at ( -195, 3, -258 ) Copy/waypoint -195, 3, -258. You must right click it and choose to pick it up, left clicking does nothing.