|The Abandoned City
(Original title: La Ville Abandonnée)
Editions Casterman, Brussels
ISBN - 2-203-55355-3
Hardcover, 48 pages
Just come out, it should be in the children's section of any bookshop in Belgium, France and the French-speaking portion of Switzerland.
There is also a Dutch edition, (De Verlaten Stad), available in Flanders and Holland.
Otherwise, www.amazon.fr is certainly your best bet.
For people in North America, www.amazon.ca has a wide selection of French-language books and it is certainly easier to order from Toronto than from overseas.