Thursby, a figment of the imagination, welcomes the audience to his lecture. Although only five inches tall, Thursby is elegantly dressed. One might also notice that his head is that of a lop-eared rabbit. Thursby relates a story about six “nursery figments,” also known as “Cozies,” on an adventure-filled night of long ago. On that night, the Cozies must figure out how imaginary beings can help to protect the human in their care—a toddler nicknamed Bingo.