FAMOUS FIVE-Five get into trouble-8th in a series of 21!

Famous Five book-Five get into trouble-8th book in a series of 21. These awesome books are straight from my childhood and have been around forever. They are easy to read and I always found them thoroughly enjoyable. This is a British edition from what looks like 1978. Thee is some writing on the inside cover and a few inside markings but otherwise this is in great condition. Thanks for looking and all the best!