Henry, his parents, and (of course) Mudge the dog go to visit Henry's Grandpa who lives with other 'Grandpas' in senior housing. All the Grandpas delight in the company of young Henry and the sloppy kisses they get from Mudge. When Henry finds a nearby pond, they all go swimming, relax in the warm grass, and tell stories. A cheerful installment in the popular Henry and Mudge series.
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