Welcome to MobileRead, alorth
If you are in the US, here is the page for peter Hamilton. As you can see, both books are on there.
http://www.amazon.com/s/ref=nb_ss?ur...milton&x=0&y=0
Here is the David Eddings page.
http://www.amazon.com/s/ref=nb_ss?ur...ddings&x=0&y=0
Here is the Feist pages...
http://www.amazon.com/s/ref=nb_ss?ur...=Feist&x=0&y=0
You can search by author, or title on Amazon Kindle books.
http://www.amazon.com/s/ref=nb_ss?ur...rds=&x=18&y=21