I found a couple of bargains while browsing amazon.fr, chances are good that they'd be available in Europe:
Year One by Nora Roberts at 0.99 €
A Game of Thrones: The Story Continues Books 1-5 by GRR Martin at 0.89 €, which is quite the bargain for the five books.
The Name of the Wind by Patrick Rothfuss (probably a repeat) at 0.99 €.