It's hard to say without reading it. Some people might like it if it has an interesting plot and well - developed characters. However, I'm not familiar with this particular Mark Shane novel, so I can't really give a definite answer.
Shane could be an individual with a passion for the macabre. In the context of 'Shane telling scary stories', he or she is the storyteller. Maybe Shane grew up hearing scary stories himself or herself and decided to carry on the tradition. He or she might have a collection of age - old tales, or perhaps create their own original scary stories to share with others.
Without having read Mark Shane's 'the lady was a man', it's difficult to be certain. However, one possible main theme could be transformation. The change from being perceived as a lady to being a man is a significant transformation. This could be explored in terms of physical, emotional, and social changes. Maybe the story looks at how this transformation affects the character's relationships, their place in society, and their own self - perception. It could also be about breaking free from the constraints of the expected gender norms and forging a new identity.
One interesting Shane Acker fanfiction could be about exploring the backstories of the characters in his works in more depth. For example, delving into the childhood of a character and how it shaped their actions in the story.