This is a good problem to have! If your book is a runaway success and Dollarbird is approached by a larger publisher for rights in your book then we will advise you on the offer and the best course of action. When an author becomes successful, it is often in the best interest of both author and smaller press to move the rights over to a firm with more money and a wider distribution network. It has long been the case that the large publishers reduce their risk by only signing up authors who have already made a name for themselves. Good luck!