Stink #8 and the Freaky Frog Freakout by Megan McDonald
Stink may be super smart, and Stink may be uber clever, but he’s been in the Polliwog swim class frog-ever and he still can’t bear to put his face in the water. But when Stink starts to see frogs everywhere — in the locker room, in his boot, in the bathtub — and a freaky blue frog licks his arm, his froggy senses start tingling! Could it be that Stink is turning into . . . the amazing Stink-Frog, fighter of slime? Croak! Squeenk! Ribbet!