Another fabulous read from Gabaldon. Here's a plot summary:

Claire and Jamie arrive in Paris determined to prevent the Young Pretender, Bonnie Prince Charlie, from trying to regain his kingdom. Having visited the clan gravestones at Culloden field 200 years in the future, Claire knows that the campaign is doomed and will sink Scotland into misery for the next two centuries.

Jamie befriends Prince Charles—a hard-drinking, womanizing young man who is kept at arm's length by his royal cousin, Louis XIV. At the same time, Jamie's management of his uncle's wine and liquor supply business gains him entree into Louis XIV's court. Playing both sides is dangerous, and he enlists the help of a young pickpocket, Fergus, whom Jamie rescued from a brothel. In order to avoid having to rut with the whores Charles surrounds him with, Jamie spreads a rumor that Claire is a Dame Blanche, a White Lady, who can tell if he's been unfaithful and can shrivel a man's equipment with a mere glance.

Pregnant and bored with a life planning dinner parties, Claire insists upon going to work at a charity hospital. From the mysterious apothecary Raymond, she learns that someone is trying to kill her. Claire figures it is probably the shifty-eyed Comte St. Germain, who lost a hold full of valuable wine when Claire diagnosed one of his sailors with the pox.

Unfortunately, Jonathan "Black Jack" Randall—supposedly killed in Jamie's prison break—re-enters their lives when he comes to visit his brother Alex, who is employed by the possible Jacobite sympathizer Duke of Sandringham. Jamie tries to restrain his fury, but challenges Randall to a duel after Randall is caught coveting Fergus's young bum. Desperately trying to stop Jamie from killing her future husband's ancestor, pregnant Claire rushes to the Bois du Bologne in time to see Randall fall in a rush of blood.

The shock is too much, and Claire loses her baby. Dying of childbed fever in the hospital where she once worked, Claire is visited by the froglike apothecary Raymond. His surprising cure is both physical and emotional, and Claire recovers. Her friend and Charles' erstwhile lover, Louise de la Tour, takes Claire to the country to recover. No sign of Jamie; Claire figures he has already left on a mission to prevent Prince Charles from making a huge profit on a shipment of rare port wine. She is therefore shocked into action when Louise lets slip that Jamie is actually in prison, on King Louis's orders, for dueling.

Claire must petition the king for Jamie's freedom, and the others warn her that Louis always demands a price for his favor. She can't let that stop her, and goes to visit Louis in his bedchamber. Louis, instead of bedding her, sets a task before Claire. In an adjoining room, two men stand accused of dabbling in the occult: she is to determine their respective guilt. They are the Comte St. Germain and Raymond, the apothecary. Quoting from the Bible, St. Germain handles a harmless snake to prove his innocence. Also quoting, Raymond provides a cup of "poison" that all must drink from, saying the pure of heart will not be harmed. Of course, the cup is harmless to Raymond and Claire but fatal to St. Germain.

So Jamie is freed, his attempt to prevent Charles from profiting on the wine shipment succeeds, and Jamie and Claire return to Scotland and Lallybroch—hoping to live out the rest of their lives in peace.

Until the mail comes one day, including a broadsheet naming the supporters of Prince Charles' bid to regain his throne. In a fit of friendly generosity, Charles had signed Jamie's name to it. Now Jamie and Claire must throw everything into supporting Charles, in a desperate bid to change the course of history. If they fail, Jamie risks the traitor's punishment. They join Charles in battle and follow him to Edinburgh. There, Claire is shocked to be approached by Jack Randall, who seeks her medical expertise in exchange for intelligence about British movements.

The mystery of her future husband Frank's survival despite Randall's inability to conceive children is solved, and it gradually becomes obvious that there is no way to alter the course of history. Grimly, it continues to march toward deadly Culloden, sweeping Jamie and Claire along.

But Jamie has a plan. He has realized that Claire is with child again, and he takes her to the circle of standing stones. With no hope for himself, he wants his child to survive. Claire is sent back through time, and Jamie returns to Culloden to die in battle.

Or does he?

Dianna Gabaldon does it again! Dragonfly continues the saga of time-traveler Claire and her larger-than life hero, Jamie.
Beautiful, colorful descriptions of the brutal life of in Scotland in the 1700s interspersed with Claire's life in the 1940s-1960s. At almost 1000 pages, a long book - but one that reads so well that I wished it wouldn't end!

Historical fiction mixed in with romance.