Hi! Answering the question you did in - somewhere - lol
Ok u can read the witch and the vampire king without reading soul mate. U've already started to read the both so then u will be on the loop about Shane and Anna's lives. But the Witch is about Jessie story and she appears as a secondary character in the first. They can be read independently but who reads both knows a lot more about the plot. So have fun and I hope u enjoy it. I also explained u in a message how u can read private chapters, in my books or someone else's books. In a computer is more difficult, but if u are reading a chapter and u move the mouse over the cover of the book, u can follow the more info shortcut that takes u to the table of contents and there u open that and the private chapters will appear in the list of chapters. Hope it helped. ^_^