Kalvan series
The police officer, Calvin Morrison, is picked up by a "cross-time flying saucer" (really a Paratime conveyor) and dropped off in an alternate Pennsylvania where "Aryans" (speakers of Indo-European languages) migrated east across Asia and the Pacific Ocean and arrived in North America.
"[3] Joseph Major noted that upon the publication of Lord Kalvan of Otherwhen, "Fans were gratified to see Piper returning to his established "Paratime" series".
[4] He notes the passing of the author and the 20-year break between books, calling The Great Kings' War "the long hoped-for sequel and continuation" of the previous installment.
[4] In a review of the later book, Siege of Tarr-Hostigos, Don D'Ammassa notes that "Carr and Green have expanded on [Piper's] original work, giving greater depth to the world and peopling it with believable, if not always likeable, characters.
[6] D'Ammassa says the book is "a story of intrigue and war that doesn't involve as much of the paratime police as I expected," noting the entertainment value from a science-fiction perspective.
Reinforcements later arrive, although in the confusion he is shot by a beautiful young woman leading them, although the bullet hits his police badge, saving his life (albeit with injuries).
However, due to his history background, Kalvan knows the formula for creating gunpowder and demonstrates how to manufacture it for Ptosphes, Rylla, and the other local leaders, developing a recipe that proves significantly more powerful than "Styphon's Best" being sold to the other princedoms.
The Ohio River was not along the Zarthani eastwards migration routes, and Trygath is a semi-barbarous area known for its horse-breeding, and not considered Hos or "Great".
The flag of Hos-Hostigos is decreed to be a red keystone (the symbol of Calvin Morrison's native Pennsylvania) on a dark green field.
Sask, consisting of Blair and parts of Clearfield, Huntingdon, and Bedford Counties in Pennsylvania, is one of Old Hostigos' former enemies ruled by the gluttonous Prince Sarrask.
After the extremely bloody Battle of Fyk and the capture of Sarrask, Sask becomes an important tool in Kalvan's war against Styphon's House.
At the time of Kalvan's arrival, Nostor was ruled by the cruel Prince Gormoth and was to be the main arm of the Styphon's House attack on Hostigos.
The reformed Hostigi forces under Kalvan's guidance defeated the Nostori army and invaded the princedom, leading to a brief civil war within Nostor.
The princedom of Sashta was created out of eastern Sask, western Beshta, and southern Hostigos by order of King Kalvan as a means of keeping Balthar's brother, Balthames from causing any trouble or from wielding any real power.
Hos-Bletha is the southernmost Great Kingdom (consisting of real world Florida and Georgia) and was originally a part of Hos-Ktemnos.
Hos-Agrys is based in New York state, northern New Jersey, and southwestern Quebec, with its capital at Agrys City (Manhattan Island).
Grefftscharr covers the area of Illinois, Wisconsin, Michigan, Indiana, Western Ohio and Southern Ontario around the Great Lakes.
The war also involves the pro-Styphon Great Kingdoms of Hos-Harphax and Hos-Ktemnos and the Pro-Kalvan/Anti-Styphon forces of Hos-Rathon and the Urgothi "barbarians" led by Warlord Ranjar Sargos.
