The Island of Ashangabad is an island in the Nonestic Ocean. It was captured by Polacky the Plunderer, who took "ten chests of gold, three bags of silver, the crown and jewels of state, together with the magic casket of Soob, the Sorcerer." Polacky the Plunderer's ship sank and the treasure was later found by Peter Brown and Ruggedo. (The Gnome King of Oz)
On the map of the countries surrounding Oz by James E. Haff and Dick Martin, the Island of Ashangabad is located in the southwest corner of the Nonestic Ocean.