Xanthos Whistle

Xanthos Whistle is an other item. When used, it awards the Xanthos mount.

Source
Xanthos Whistles can be obtained as a drop in duties or purchased from vendors.

Duties
Xanthos Whistles can be obtained as a drop from the following duties:
 * The Howling Eye (Extreme)

Vendors
Xanthos Whistles can be obtained during the Moogle Treasure Trove event by exchanging 30 with the following vendors:
 * Itinerant Moogle