Some world-weariness does eventually creep into McGee's character, perhaps because the 1960s Florida in which he originated no longer exists. The only direct indications of his age ever given are comments that he had served in the Korean War, and until the 1980s he seems ageless. He does at one point refer to having a "birthday ending in zero", which could mean that he was born in 1930. But as the series progresses, minor recurring characters began to drop away and it becomes apparent that McGee himself is getting older, along with his creator. In later novels such as "The Green Ripper" and "Free Fall in Crimson", there is a sense of desperation that the violence in the world is too senseless to be explained and will never end. Much of that dissipates with the ending of "The Lonely Silver Rain", which became the final volume when MacDonald died in 1986. (Reports of another final McGee novel, possibly narrated by Meyer, titled "A Black Border for McGee" and to be published posthumously, have never been confirmed.)