Weird Happenings by Kaye Umansky
Pinchton is left home alone and decides to invite the Weird family around - with chaotic results! Now re-jacketed in a stylish new package! When Pinchton Primm invites the Weird family over while his parents are away, he is nervous about them messing up his mother's pristine house. But not even Pinchton could have imagined the mess that would ensue! Is there any way to repair the damage before the Primms get home? More funny goings-on in this second book about the Weird family.