This is one of the books I loved as a girl, then couldn't remember the name of for many years and wanted so much to read again! One lucky day, I found a beat up copy of it at Goodwill, and was so thrilled! It was as good as I remembered---an older man babysits some children. He is somewhat magical, and they have adventures like flying around in a bathtub and having all the faucets in the house give out different flavors of soda. I always loved the end of the book best, when Mr. Pudgins makes Christmas ornaments from bubbles, each of which have a little scene inside, and one of the scenes tells him that another girl he has cared for is very sick and he needs to go to her. I always wished there was a sequel!