Will iTunes get Percy Jackson and the Olympians on audiobook?

You can search the name of it on iTunes. If you do not find it, try to search it on other audiobook providers like Audible. Don't worry. If you are new to Audible, you can listen to it for free due to the free trial. And you can also use TunesKit Audible AA/AAX Converter to convert Audible books to MP3 and share the books also the fee with others.