Switchback - Susan Dunlap - Bog

When her Zen teacher is attacked in front of her by a silent, hoodie-clad assailant, Darcy Lott feels uncharacteristically helpless. For if she cannot identify Garson-roshi's attacker, she cannot protect him. Who would have a reason to assault this wise and gentle man? It soon becomes clear that Garson-roshi has been keeping secrets from Darcy.