The Cross-Time Engineer (Adventures of Conrad Stargard, volume 1) by Leo Frankowski

[james_davis_nicoll]

A Polish engineer is transported into the past, ten years before the first Mongol invasion of Poland. Luckily for him, his allies include the book's author.

The Cross-Time Engineer  (Adventures of Conrad Stargard, volume 1) by Leo Frankowski 

Comments

[bunsen_h]

I recall that the horse was extremely intelligent, enough for him to ask simple questions and have it answer by head movements and hoof taps.

There was also the Plate Armour +5 which the Agency planted for him, but which he missed picking up. Even when I read the books as a teenager, I was very skeptical of the premise that the Agency used. "We've got a video recording of him, but nobody has watched the recording yet, so things can be changed. As soon as someone watches the recording, the events become fixed."