Mercenaries
The initial book series written by Dai Alanye. Three tales completed, the final one still in process. Alternate history with a haphazard crew of time-traveling adventurers.
Everyone nowadays seems to have problems—money, health, politics, personal commitment, sexual identity. But if you think things are tough in the present, wait till you experience the Middle Ages. Not that mythical Arthur-Galahad-Merlin stuff but the real thing—battle axes, unruly peasants, taxes and all.