Four top historical romance novelists team up in this new collection to offer stories of love and romance with a twist of humor. In Karen Witemeyer’s “The Love Knot,” Claire Nevin gets the surprise of her life awaiting her sister’s arrival by train. Mary Connealy’s “The Tangled Ties That Bind” offers the story of two former best friends who are reunited while escaping a stampede. Regina Jennings offers “Bound and Determined,” where a most unusual trip across barren Oklahoma plains is filled with adventure, romance, and . . . camels? And Melissa Jagears’ “Tied and True” entertains with a tale of two hearts from different social classes who become entwined at a cotton thread factory.