From the Super Mario Wiki, the Mario encyclopedia
The Zeekeeper's Feathers is an item that appears in Mario & Luigi: Dream Team, and one of the five Ultibed parts. It is a collection of feathers straight from the Zeekeeper found in Pi'illo Castle. Mario and Luigi find it in a room known as the Battle Ring while they are searching the castle for the item. Before they can retrieve it, the Bros. must defeat Grobot X in battle. Once the Bros. are victorious, Mario can collect the feathers.
Ultibed Manual text
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