The Triptych is a collection of Graham Leslie's three novellas: Apeiron, Genesys, and The Harbinger.
Apeiron
Apeiron is Graham Leslie’s third novella, a thrilling story about the inexplicable appearance of a container ship in the middle of Central Park.
World tensions are red-hot when a container ship inexplicably appears in the middle of New York’s Central Park. When a troubled passerby with cursory knowledge of quantum physics finds himself the best resource of a shadowy government official trying to find out how it got there, the situation quickly devolves into a race against time that puts the survival of the entire human race at risk.

Genesys
Genesys is Graham Leslie’s second novella, a grimy cyberpunk science fiction story about a dangerous corporate conspiracy in Crater City, a sprawling metropolis on Jupiter’s moon Callisto.
A mega-corporation on Callisto has lost a sensitive asset. When a disgraced private investigator is hired off a backwater ice-hauler to track it down, he knows he’s in for more than his employer let on to. What he finds is a threat beyond his wildest expectations that puts the survival of the entire moon at risk.