A tiny novelty pet gets too big for its owners to handle in the third book in the Ghosts of Fear Street middle grade series from master of horror R.L. Stine--now with a brand-new look!

When Scott and Glen decide to use water from Fear Street Lake to grow their Aqua Ape, they're dismayed to see the little creature growing...and growing...and growing. As the boys scramble to find places to stash their increasingly large pet, they can't help but notice the ape is getting harder to wrangle--and its teeth are getting sharper.

Can Scott and Glen contain their destructive new pet before it's too late?