Mr. Martian has apparently escaped from the 1st Date Cache ([url=http://www.geocaching.com/seek/cache_details.aspx?guid=8e21e67b-dc1d-4ca3-8ae9-9a73b9d53043&log=y&decrypt=]GC2F40[/url]) on the trail at the Sewee Visitor and Environmental Education Center in Awenda SC, and caught the next "aeiou&y" back to Mars, as his absence is noted by cache logs dated April 9 2006 and October 24 2006.
Godspeed, Mr. Martian, wher'er ye be.