Will Owl ever get a good night's sleep? He's ready for bed, but as soon as he settles in, he hears a strange noise. He looks everywhere--in his cupboard, underneath the floorboards--even in his walls. He'll never get to sleep unless he can figure out what's going on! But as he's busy tearing his house apart, he doesn't notice one tiny, squeaky, mouse-shaped detail--the culprit!