Sorry but you are incorrect. You do not own e-books, you purchase a license when you buy your “book” from any e-store. That e-store, like Amazon, is acting as an agent of the publisher, and if that agent goes bankrupt or the agent loses their license to distribute ebooks from that publisher, then they must remove all copies from all accounts, because the e-store does not own the book either, it is the publisher (I.e. Trek published by CBS & Simon & Schuster is owned by S&S even if you buy an ebook from Amazon. If CBS through S&S decided that they didn’t want Amazon selling “Star Trek The Motion Picture Novelization” and CBS wanted it removed from sale and all Amazon accounts, Amazon would have to comply and those who had purchased e-copies would lose access to them.) Ebooks are digital and the path of ownership is really unclear.