Mr Fib and Little Miss Surprise are the latest characters to join the “Mr Men & Little Miss” children’s book series, it has been announced. The two new stories will be published on September 12, more than 50 years after Mr Tickle, the first Mr Men book, was released in 1971. The series was conceived by cartoonist and illustrator Roger Hargreaves, who died in 1988, and has been continued by his son Adam, who has added new characters to the collection. Mr Fib fibs to impress people, but his fibs are getting bigger and bigger, and one day he goes too far and his friends are upset, according to pu…