Harri Unbound - Unbound, #3

When the ruthless magician Madrin dies, opportunists seek revenge for his cruelty. They kidnap his daughters, meaning to sell them into sexual slavery at a brutal club for sadistic, wealthy men. Lady Harri Madrin manages to escape before the doors close behind them and vows to rescue her sister, Morgan. Gareth Lamb, the handsome son of a local merchant, finds Harri and hides her from her furious pursuers.
When she begs him to help rescue her sister, he agrees. They decide to pretend she is his concubine so they can gain entry to the club to search for Morgan. The master-slave charade forces them into sizzling erotic encounters. Soon, they fall in love, but Gareth knows he could never aspire to marriage with the high-born Lady Harri. Though Harri's magical abilities give them an edge, they're badly outnumbered by the slavers.
Even if they manage to rescue Morgan, will Gareth's disapproving father disown him if they declare their love and attempt to marry?