The Dragonsitter Detective (Dragonsitter #8)

Dear Uncle Morton, Are you sitting down? If you're not, you probably should. Because I have some very bad news. Someone has stolen one of your dragons. Eddie's mom is getting remarried, to Uncle Morton's Scottish neighbor Gordon. But then Ziggy is stolen. It's not long before Arthur is taken too. Eddie must track the thief down, rescue Uncle Morton's dragons and get to the church on time.