It's the mid-1960s, one of Schulz's peak periods of creativity. Snoopy has become the strip's dominant personality, and this volume marks two milestones for the character: the first of many "dogfights" with the nefarious Red Baron, and the launch of his writing career ("It was a dark and stormy night..."). Two new characters - the first two from outside the strip's regular little neighborhood - make their bows. Roy (who befriends Charlie Brown and then Linus at summer camp) won't have a lasting impact, but upon his return from camp he regales a friend of his with tales of the strange kids he met, and she has to go check them out for herself. Her name - Peppermint Patty!