Looking for a Spander fic where Spike & Xan wind up stranded in another dimension in the middle of a foresty wilderness all by themselves. They build a cabin, and spend many months together waiting for rescue. When Willow & Tara finally find them again Spike & Xander don't want to leave, and W&T go home promising to come back for a vacation there with them soon. I could have sworn it was called Wilderness but nope, that's a completely different fic. Does anyone recognize this one?