Even though her family calls her Emma Bemma, Emma knows she is really a dilEmma.

The middle kid between her two brothers, whom everyone calls Big and Little, Emma is just Medium. Big thinks he's the coolest kid on the planet now that he's ten. He doesn't want to play with LEGOs, or play anything with Emma anymore. And everyone thinks Little is adorable, even when he picks his nose and eats it! Sometimes Emma feels like the only one who understands her is her Japanese fighting fish, Star, whose tank is stuck in the middle of his two brothers. And as usual, Emma has to ride in the middle seat as her family heads out on a weeklong beach vacation with friends, where being just medium will only get worse! Then Emma has an idea. What if she could get out of being in the middle by taking on a new role? What if she acted BIG? Will things go as planned? Or will she have another huge dilEmma?