"So, okay," he says, thinking about it. "You can't get back to your cave and I can't get back to my world until the tigerfolk go away. The tigerfolk won't go away until they think there's no elves around or they're desperate enough to leave anyway, and we probably don't want to make the tigerfolk desperate to leave, that seems like a generally bad idea. You can't mess with the elves because they'll go after your tribe; I don't have a tribe to worry about, but I also don't have the fancy magic necklace so I wouldn't get much of anywhere if I tried talking to the elves about any of this... you might not know a lot about elves but you probably still know more than me; what else is there?"