Two Books in One (Star-Crossed Rascals & Rascals Sing at The Opera House. When rascals Polly and Gertie collect filthy bubblegum from the pavement, Great Aunt Mabel bans them form playing together. Too bad for Auntie 'cause Polly and Gertie are in the school choir together, and they want to be famous like Justin Bieber. But when Polly accidently wee-wees on the classroom floor, Miss Badger kicks her out of the choir. She claims Polly will pee on the stage and embarrass their school when they sing at The Opera House. Determined to go to the festival, Polly promises to mime if the Principal to lets her go. Though the headmistress agrees, Polly doesn't tell her she plans on taking her doggy. After all, Mange is a rascal too, and he wants to be famous like Verdell.