Probably won't help the deep issues, but someone came up with a chronological reading order for Crows/Dragons, since they're apparently interleaved.
http://joenotcharles.livejournal.com/119984.html

I've also seen a wacky idea that Varys is a Merling (http://forum.rpg.net/showthread.php?683278-ASOIAF-General-Discussion-for-Those-Who-ve-Read-Everything-(Total-Spoilers)&p=16694118#post16694118) (local Deep One?) though a reply was that it made epileptic trees seem sane.