Wendy's is currently offering free audio books with their Kid's Meals. You can get one of four Magic Tree House books with each meal. In addition, Wendy's has partnered with Random House to offer you 25% off of audio books online and free shipping. This offer is good until October 1, 2008 and is limited to one title per household.
If you go to www.listeninglibrary.com/wendys and use the promotion (discount) code wendys at checkout, you'll get the discount and free shipping.