What is the author's tone in The Lust Lizard of Melancholy Cove by Christopher Moore?

Different aspects of mental health present another major theme in the novel. The title renames Pine Cove to "Melancholy Cove" because so many residents are depressed. Sadness and depression represent big business, both for Mavis, the bar owner, and Val, the psychiatrist. The tone represents various states of mental and emotional wellness.