Something for Everything - a science fiction novel by BP Gregory

http://www.amazon.com/Something-Everything-Automatons-Book-2-ebook/dp/B0159RNGVI

Long ago humanity retreated into migrating cities, leaving the landscape to monsters. Within the safety of walls the caste of Surgeons are denied human touch to preserve their skills.

A Surgeon must not be touched. The city can never stop.
Comforting truths to live by. But the other cities have fallen silent. Fear stalks the streets. And John the Surgeon craves touch more than anything.