Promise Me, Harlen Coben

This the 8th in the Myron Bolitar Series is part of a Harlen Coben triple book set. The other two being Stand-alone novels that I'll get round to once I've finished the Myron Bolitar series and as I've already read the 9th, Long Lost, there's only one to go.

Promise me you'll look after your teeth, promise me you'll pay regular visits to the dentist. One less tooth in my mouth after today's visit to the dentist. Promise me you'll learn from my mistakes.