Death by Tart Attack (A Pennsylvania-dutch Mystery)

Shockwaves are running through Hernia with the disastrous news that a huge, biblical-themed amusement park is to be built on its doorstep. At a public demonstration to showcase his plans for the new park, Magdalena's ex-husband, Aaron Miller, bites into a homemade tart - with fatal consequences. It's clear the tart was poisoned, but who baked it?