This is a fun one, because it touches on the interesting space between spells and magic items. The Travel power is generally limited to magic items, but this was clearly a one-time effect. Another reason one-shot items like this are useful is that manufacturing them doesn't require a roll. So if your Brains skill isn't what you need it to be to achieve a certain magical effect, maybe you should look into making it a single use item.
It's easy to imagine that characters like Dr. Pipt are on the low end of the Brains spectrum for Sorcerers and so rely on items rather than spells in order to avoid the risk of failure.
Power: Travel (3)
Scope: City/Race (2)
Ritual: No Ritual (0)
Item: Single Use (-3)
Effect Power: 2
This is the spell Glinda used on Queen Ann Soforth and the Army of Oogaboo to transport them out of Oz into the unknown lands beyond the Deadly Desert, kicking off the story of Tik-Tok of Oz.
Those of you following along with your book at home, you'll notice that I didn't include a Ritual modifier to drop the Effect Power down to 1. While this would have been more efficient choice, I felt that a magical effect of this magnitude should have a more significant cost. 2 Oz Points/exotic ingredients sounds about right.
Baum Proliferation Sale!
In celebration of L. Frank Baum's birthday on May 15, I'm offering a 15% discount on Adventures in Oz: Fantasy Roleplaying Beyond the Yellow Brick Road. Pick it up at Lulu.com in print or PDF, RPGNow, (print, PDF and bundle) and DriveThruRPG (print, PDF and bundle) through the links over on the right. (Use these links when ordering from RPGNow or DriveThruRPG, or else you won't get the discount.)