Well, 'saddle' could be a six - letter word in the 'Witness' novel. Maybe it's related to a journey the characters take, perhaps on horseback. Also, 'gossip' might be there. If the story involves a community, there's bound to be some gossip among the characters which can drive the plot forward.
Sure. 'Breeze'. It could be used to describe the weather in a particular scene, creating an atmosphere. For example, a gentle breeze might be blowing as the main character witnesses a crucial event.
The word 'nod' could also be considered in a way related to a novel. When reading a novel, we might nod in understanding or approval at certain points in the story. It's a bit of a stretch but still a 3 - letter word.
The word 'owl'. In some novels, an owl might be a symbol or a character. It can represent wisdom or mystery, like in the Harry Potter novels where owls are used to deliver messages. And it is a 3 - letter word.
" Thirty-six Stratagems " was a summary of ancient Chinese military strategies. It was divided into six sets, including thirty-six strategies such as the golden cicada shedding its shell, throwing a brick to attract jade, and killing someone with a borrowed knife.
Vain. While it doesn't have a super obvious connection to 'novel' at first glance, both words can be associated with ideas of creativity. A novel is a creative work, and being vain can be related to a certain self - focused creativity in how one presents oneself.