Vampire State Building (Vintage Paperback) by Byron Preiss

What if your dad were president of the United States, and you lived in the White House? Some of the most famous people in the world would visit your house, and you'd have a new room to explore every day of the month. And you might meet some residents of the White House that nobody's heard of, like the family of bats living in the basement, an anteater named Agatha who lives in the garden shed, and a blue bear. Each season with these new friends would bring new adventures. Perhaps you'd solve a mystery with the help of a Secret Service agent. Or you could take a trip to the very tall -- and twice as spooky -- Vampire State Building...and hope you live to tell about it!

Originally published as The Bat Family.