These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Crazy Awesome - Jack and Jeronimo walk a fine line between sanity and insanity and are really awesome because of it.
Epileptic Trees - Tons of them involving the Solomonic Gold and the true nature of Enoch the Red.
Nightmare Fuel - Daniel's kidney stone operation and the story of how Jack became "Half-Cocked". The descriptions of the effects of smallpox and the attention paid to 17th/18th-century sanitation (or the lack thereof) probably count as well.
In-story, Hooke and Wilkins' experiments at Epsom provide Daniel with this.
