So I wrote a fantasy novel but haven't written the sequel. Is it still a good idea to widely promote the book without the sequel out, as I realize the first installments are more of a loss leader to get people into the series. I do have a sign up link for my mailing list in the first book. I was just thinking about running a few days free promo through KDP and using some websites (robin reads, ENT, etc.) to promote the first installment. I don't expect the sequel to be out for at least 6 months...