Research the connection between ashes and honey

Chasing leads

You begin with Prisoner's Honey, which could certainly explain the Machinesmith's disappearance, if not the signs of struggle. Your inquiries peter out.

Ash leads to fire, and fire - inevitably - to Hell. In Tregeagle's Infernal Industry, you find a reference to Caprine vellum, 'gathered from goat demons in the usual manner of vellum' (charming) 'it ignites at the merest spark, and once lit will not be quenched - even if submerged - until consumed to ash. It burns with a strong honey-smell.'

It is popular with more experimental Benthic scholars, who may have cause to dispose of research notes in a hurry.

[Commonplace] Information too dangerous to be written down, except in code.

You've gained 25 x Cryptic Clue