Help! It's Parents Day at DSA #10 (Dragon Slayers' Academy)

It's visiting day at Dragon Slayers' Academy and Wiglaf's entire family is coming!  Will Wiglaf be able to survive the day with his wacky parents and crude older brothers and come out of it without becoming the laughingstock of the entire school?  Hot on the heels of book #9, here's another all-new story starring everyone's favorite dragon-slayer-in-training.