well its a place of magic so perhaps a huge spell was worked wrong and the resulting fallout zaps people from random locations to a single one. For added believability say it was the plan of a sorcerer who wanted to transport themselves and their party to the fountain and ended up transporting several people of the same goal to a random location. This would mean we could have a smaller party of the dedicated still going strong and lets us get together quickly and relatively believably? In other words hell yeah Im in