A scroll on which many dungeon map coordinates have been recorded.
If you tear it up, it can transport you once to:

Nogg Road (Magma Dungeon)
Mjolnir Dead Pit (Coal Mines)
Umbala Dungeon (Pre-Renewal only)
Einbroch Dungeon
Payon Caves
Toy Factory
Glast Heim Prison
Louyang Dungeon
Hermit's Checkers (Kunlun Dungeon)
Izlude Undersea Tunnel (Byalan)
Turtle Island Dungeon
Clock Tower 3F
Clock Tower B3F
Glast Heim Culvert 2F
Sphinx Dungeon 4F
Pyramid Dungeon 4F
Prontera Culvert 3F
Amatsu Dungeon 1F (Tatami Maze)
Somatology Laboratory 1F (Bio Lab)
Ayothoya Ancient Shrine 2F

Warning - After using it, unless you choose the destination in 1 minute, it will be useless.