Wisdom's Way / The Hill Top Conspiracy

Matthew and Scott are visited at home by their near neighbour, the Reverend Timothy Pearson, who is helping out another parish during their interregnum. He is concerned about the recent deaths of members of the church council. Are they dying of natural causes, or are they being helped to pass over? It may or not be a police matter. Poison is found, bodies have to be exhumed, and a local convent is suspected of being involved. Where on earth do A, B and C fit into all of this?