Wren was sound asleep by moring and was unwakable, it seemed better not to disturb her and let her rest for least the morning. with her injury, she wasn't likely to go far if anywhere for that matter, she needed her rest.
	 As long as Aspers or Lady Agatha didn't decide to snoop around or check on Robert for some reason or another she shouldn't be found sleeping. letting her be would also avoid any complications caused by the thief being around and recognizing her.
	That being said she did describe it to you the night before and gave you the names of several towns and landmarks as well as the cartographer name, Amilia which should be written on the back if she didn't wake up to leave with you.