“Mr. Monk Is Miserable” by Lee Goldberg

More compulsive, page-turning fun in this all-new, original mystery starring the popular TV detective.
Monk already ruined a trip to Germany for his longsuffering assistant Natalie. The least he can do is accompany her on a detour to Franceaand try not to ruin that too. In fact, Monk throws Natalie for a loop by announcing that he wants to visit the sewers of Paris. The historic underground maze of pipes and tunnels is famous for making the City of Light sanitary, and to Monk, thatas worth paying tribute to.
The only problem is that their explorations lead them to another hidden world below the Parisian streets: the catacombs, filled with aging skulls and bones. Monkas sharp eye catches sight of one skull thatas not so oldaand that shows evidence of murderapulling them into a case more twisted than the catacombs themselves.