Only one of these books (A Wizard Abroad) has anything in particular to do with Ireland. But at the moment it seems a little stingy to discount just that.
So for a short time, you can have the complete 9-volume set of the revised and updated New Millennium Editions of the Young Wizards series for $27.99 -- 50% off the usual price. It's quite a bargain when the discounted price means you're paying less than USD $3.00 per ebook.
No need to worry about using discount codes -- the package price has already been discounted for your convenience.
This discount is going to run out at the end of St. Patrick's week (at 11:59 PM on Friday night, March 20th)... so if you're interested, please stop in and grab your set quickly!