Shared Passions (Harlequin Historical)

is book #8 in the Harlequin Historical line.
==Book Description==
KINDRED SOULS — Sydney Spencer had been taught to be a lady. But her rebellious spirit yearned for adventure... and her awakening heart, for love. Although John Randall knew that abetting escaped slaves was dangerous, he had to follow his conscience. He was a man on the brink, and the last thing he could risk was falling in love. 
But a midnight encounter brought them together, and through the hot turbulent summer their emotions simmered in the face of danger. Until both finally realized that passions, like danger, can be shared. 
(Description from paperbackswap.com)