I had a long time raiding buddy tell me he just spent 1900 gold on the Mage turtle book. I figured my mains fishing was high enough to get the fish for the lure to summon Gahz'ranka to attempt got get the book. After about 1hr of prep everything was ready to go. I headed in with my 5x shaman and came out with 1 mage turtle book. The same guy who had turned me onto this turtle book recommended I sell it for 3k-4k gold. I though he was joking until I posted it on the AH for 4k BO and 2k Bid and got a bid within 2 hrs. I just logged on and 3800 gold was in the mail for this auction!