White, Fred Merrick: The Mystery Of The Four Fingers. v1. 24 Mar 2013
 

Frederick Merrick White (1859-?) wrote a number of novels and short stories under the name Fred M. White, including the six 'Doom of London' science-fiction stories, in which various catastrophes beset London. These include The Four Days' Night (1903), in which London is beset by a massive killer smog; The Dust of Death (1903), in which diphtheria infects the city, spreading from refuse tips and sewers; and The Four White Days (1903), in which a sudden and deep winter paralyses the city under snow and ice. These six stories all first appeared in Pearson's Magazine, and were illustrated by Warwick Globe.
Wikipedia

Excerpt

A fabulously rich gold mine in Mexico is known by the picturesque and mysterious name of The Four Fingers. It originally belonged to an Aztec tribe, and its location is known to one surviving descendant—a man possessing wonderful occult power. Should any person unlawfully discover its whereabouts, four of his fingers are mysteriously removed, and one by one returned to him. The appearance of the final fourth betokens his swift and violent death.

php files?
 

Charlie: this book is a .php file. How do I turn that into an epub?

Are you blocking any scripts in your browser, Araucaria? I'm back home at my Windows machine, and I get the epub file (right- or left-click). It must be your browser settings somehow. But perhaps you should ask the mods.