Ardie's Big Secret

When Ardie promised that he would not give away what he knew about an upcoming family surprise, it seemed so easy. But protecting the secret got harder and harder. Everything he tried seemed to backfire. Luckily, with help from his teacher, he came up with the perfect plan. Now, to execute it, all he needs to do is to use his wagon to hide an odd list of supplies, to work around his two very observant and suspicious parents, and make sure that his little brother doesn't do anything to ruin ...