Emily and the snowflake

Jan Boyer Wahl (April 1, 1931 – January 29, 2019) was an American children's author. He was a prolific author of over 120 works, and was known primarily for his award-winning children's books, including Pleasant Fieldmouse, The Furious Flycycle, and Humphrey's Bear. Wahl sometimes jokingly referred to himself as "Dr. Mouse", a nickname given him by a young fan.