My book was published by Melrose Books, Ely, U.K., in 2008. It was not self-published/vanity published, though I did have to pay toward publication. It is only available online; but despite knowing the title and ISBN, even I have problems trying to find it.
Can I legally change the title, pen name, character and place names and send it to another publisher?
Also, since I own all copyrights, can I simply send the book unchanged to a different publisher?