Seasons of Light and Darkness. Early in The Wrath of Khan, Doctor McCoy visits Admiral Kirk bearing gifts in honor of his birthday. The conversation isn't the most cheerful, and Bones asks why everyone is treating Kirk's birthday like a funeral. It was a telling moment between two close friends, but did you ever wonder happened next? In his novella Seasons of Light and Darkness, Michael A. Martin gives us a missing scene from The Wrath of Khan, one that explains why McCoy is such a curmudgeon, and why he is so concerned about his friend's state of mind. In this episode of Literary Treks hosts Matthew Rushing and Christopher Jones discuss Seasons of Light and Darkness, how it adds to the McCoy mythos, when it is acceptable to cast aside our own rules and ethics in the name of the greater good, and why, if you plan to appear on The Bachelor, you should make sure it isn't the Capellan edition.