Guardian of the Freedom : Merlin's Descendents #5

Merlin's Descendants, Irene Radford's historical fantasy series, has taken us from the legendary time of Merlin and King Arthur forward through Great Britain's history. Now, with Guardian of the Freedom, we reach a very divisive age for both the British Empire and the Kirkwood family, the descendants of Merlin and Arthur in the Pendragon line. King George III has recently taken the throne, and, unlike some of his royal predecessors, he seems only too willing to cut himself off from the counsel and magical protection of the current Pendragon, Drake Kirkwood, the Earl of Kirkenwood.
Drake, suffering from ill health which is not entirely natural, has slowly allowed others in the Pendragon Society - the secret circle of magic practitioners dedicated to the protection and preservation of Great Britain - to play a greater role in government than they should. His rebellious sister Georgina has long been absent from England, off fighting in foreign wars in a disguise that allows her entree to places and events no woman would normally see. With Georgina away, Drake has come to depend, perhaps far too much, on a distant cousin, Dr. Milton Marlowe, a prominent member of the Pendragon Society.
But suddenly situations both at home and abroad have begun to escalate to crisis proportions. Georgina, badly injured in the war, returns home at last. When she finds, to her horror, that Drake seems to be on the brink of death, she knows she can no longer shirk her responsibilities nor deny her magical heritage.
Yet circumstances may well prevent Georgie from being there when Drake and the family need her most. Sent to the American colonies on a secret mission, Georgie soon finds herself entangled with some of the key leaders of what will become the American Revolution. Torn by conflicting loyalties, and faced with an enemy who has once again opened a way for the Demon of Chaos to wreak havoc in both the Old World and the New, she will be hard put to help Drake and the family in their hour of dire peril.