Please reread our request rules.
We ask for URL's to a reseller showing the titles are available in an Audio format.
I notice your after a series,so you need to list each title in that series and each titles URL.
If you need guidance then look at every other series request posted here,poorly made requests as yours is are deleted normally.
thx
edit: As your new i will add the URL's this time.
1 Dragon Mountain
https://www.audible.com/pd/Dragon-Mountain-Audiobook/14711959962 Dragon Legend
https://www.audible.com/pd/Dragon-Legend-Audiobook/14711998783 Dragon City
https://www.audible.com/pd/Dragon-City-Audiobook/13985001434 Dragon Rising
https://www.audible.com/pd/Dragon-Rising-Audiobook/B09LJ3FM38