Relief Valve (The Plumber's Mate #2) - J.L. Merrow [Nm]

If you dig up the past, be prepared to get dirty.

It hasn't been all smooth sailing since plumber Tom Paretski and P.I. Phil Morrison became connected at the heart, if not always at Tom's dodgy hip. Neither of their families has been shy about voicing their disapproval, which hasn't helped Tom's uneasy relationship with his prickly older sister, Cherry.

But when Cherry is poisoned at her own engagement party, the horror of her near death has Tom's head spinning with possible culprits. Is it her fiance Gregory, a cathedral canon with an unfortunate manner and an alarming taste for taxidermy? Someone from her old writers' circle, which she left after a row? Or could the attack be connected to her work as a barrister?

Phil is just as desperate to solve the case before someone ends up dead-and he fears it could be Tom. At least one of their suspects has a dark secret to hide, which makes Tom's sixth sense for finding things like a target painted on his back...