K.J.帕克为英国作家汤姆·霍尔特（Tom Holt）发表奇幻小说时使用的笔名。

汤姆·霍尔特出生于伦敦，毕业于牛津大学瓦德汗学院。曾为律师，现在定居英格兰南部经营自己的农庄。平日喜欢冶金、锻工、木工等原始手工劳作，并对钱币收集、军事研究、中世纪城市规划等学术研究广有涉猎。

作家自1987年开始发表作品，在以本名发表历史小说的同时，以K.J.帕克为笔名发表奇幻小说。而K.J.帕克的真实身份一直保密到2015年才正式公开。

作家迄今已经用K.J.帕克的笔名出版20余篇奇幻小说，多次获得世界奇幻奖。作品风格独树一帜，对话风趣幽默，深受读者喜爱。

Subterranean Press is proud to announce a new novella by the enigmatic author of The Company and The Engineer Trilogy.

When his father, brothers and uncles wiped each other out in a murderous civil war, Nicephorus was forced to leave the University and become emperor.

Seventy-seven emperors had met violent deaths over the past hundred years, most of them murdered by their own soldiers. Hardly surprising, then, that Nico should want to fill the major offices of state with the only people he knew he could trust, his oldest and closest friends.

But there's danger on the northern frontier, and Nico daren't send a regular general up there with an army, for fear of a military coup. He turns to his best friend Phormio, who reluctantly takes the job.

Military dispatches, written in the purple ink reserved exclusively for official business, are a miserable way for friends to keep in touch, at a time when they need each other most. But there's space in the document-tube for another sheet of paper.

Purple and Black will be printed in two colors throughout.