The poet assassin

Some mysterious graffiti on the walls of the Castillet, a crowned reptile in
Saint Jean Cathedral, the Campo Santo defiled: these are some of the bizarre
clues in Lieutenant Dominique d’Astié’s latest investigation. Is there a link
between their symbolism, the enigmatic poems strewn all over the streets of
Perpignan and the bloody assassination of “King Arthur Pendragon”? The young
Parisian police officer, newest member of La Police Judiciaire de Perpignan,
will need to brush up on the old Arthurian legends if she is to solve this
very non-Catalan murder!