they were to be exposed an a gibbet," etc., etc.

It was proved that they had amassed immense fortunes in the exercise of
their infamous calling. The entries in the books seized at their house,
though sparse, would have led, if made public, to scandals, involving
many in high places; it was therefore judged best to limit the accusation
to the two deaths by blood-poisoning of Angelique de Querchi and
Charlotte Boullenois.