You have lots of options there – dozens of e-books by leading Christian writers – all free for download without registration or need to give an email address. All you have to do is select the format you want to read on your computer, smart phone, or e-reader, then download and enjoy!
Having too much time on one's hands is not fun after a while, but you can turn the situation around and use that time both profitably and enjoyably with good e-books. So why not stock up – there is no shortage. But you may find a number of books that you would be glad to read!