for There Was an Old Lady Who Swallowed a Birthday Cake by Lucille Colandro and Jared D. Lee
"There was an old lady who swallowed a cake. I don't know why she swallowed the cake. It was a mistake! Scholastic's Old Lady is more popular than ever, and in celebration she's swallowing a cake ... and a candle, and a sign, and some balloons, and a hat, and some gifts. Can you guess why?
Publisher description retrieved from Google Books.