Watch out, middle school! In her second foray out of graphic novels and into middle grade, Babymouse has a smartphone, and she's not afraid to use it. . . . Ping! Ping! The sound of texting is in the air. Everyone at middle school has a cell phone. Babymouse just has to get one, too. But having a phone is a lot of work! Building up a following on SoFamous, learning text lingo, keeping up with all the important koala...