sentences:  Similarly, Glen Cook's "The Black Company" series focuses on the adventures of an elite mercenary unit.The South African mercenary, Christian Rindert is a principal character in Hugh Paxton's 2006 novel "Homunculus" published by Macmillan in paperback (March 2007, ) which features mercenary operations and the testing of horrific new bio-weapons during the civil war in Sierra Leone.In the Ashes series by William W. Johnstone, the main character of Ben Raines is mentioned as having worked as a mercenary-for-hire in several African armed conflicts after leaving the U.S. military (having served during the Vietnam War).