Karen's New Holiday — Ann M. Martin

From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation!Happy Augustina to you!There are no big holidays in August. But Karen wishes there were. So she and her friends decide to invent a brand-new holiday of their own. Augustina will celebrate the end of summer. And the kids want it to combine parts of all their favorite holidays. The only problem is that they can't decide which ones.