He himself felt ridiculous while he penned the letter and would not have believed a single word he had written had he not seen things play out with his eyes. That's why he had gotten all the other men that had witnessed the second field of fire also to sign their names on that letter. He inwardly wondered what was so... urgent to force a monster of the calibre of Jon Stark to hurry back home? Maybe the dragonlord was just putting on a strong front and bluffing shamelessly, but Jaime would rather not take the risk.