Sacrificed to the Dragon

Melanie Hall strikes a desperate bargain: six months living among the Stonefire dragon-shifters, and an attempt to conceive, in exchange for the blood that can save her dying brother. Her assigned mate, Tristan MacLeod, has hated humans since hunters killed his mother and tortured his sister, but his dragon will not let him keep his distance from her. First in the Stonefire Dragons series.