In the quest guide, it doesn't say until mid paragraph that you need a cow bell: Having already been to Lumbridge twice for the quest, it would have been much more time efficient to have known this was a "Required Item." Then, I could have obtained the cow bell on one of my trips to Lumby, and wouldn't be heading back there now. I am sure anyone who does this quest in the future, using the Tip.It guide, will appreciate not having to go back unnecessarily. Thank you for your time, Tzara