Brain Freeze is a short, humorous story written by musician and author Tom Fletcher, often commissioned specifically for World Book Day to encourage reading. The story features Fletcher's signature blend of absurdity and fun, likely involving a child who gets a literal "brain freeze" from eating ice cream too quickly, leading to a fantastical or ridiculous sequence of events. The book is designed to be a quick, accessible, and highly entertaining read, using humor and a relatable concept to promote literacy. The story celebrates the joy of reading and the silliness that can be found in everyday childhood experiences.