Eldorado is a continuation book to The Scarlet Pimpernel, first published in 1913. The plot starts in 1794, Sir Percy consents to take Armand St Just, brother of his wife, Marguerite, to France as a part of an arrangement to save the young Dauphin. The plot starts in 1794, Sir Percy consents to take Armand St Only, sibling of his better half, Marguerite, to France as a feature of an arrangement to save the youthful Dauphin. He falls in love with an entertainer named Jeanne L'Ange and fails to remember his promise to his leader. She is captured and Armand fails to trust Sir Percy who has let him know that he will safeguard her and fails to remember his promise to his leader. Sir Percy is caught by Chauvelin and Heron in the cell that was home to Marie Antoinette in her last days. Armand, desperate to share Jeanne's destiny, runs to the entryway of the Temple jail and shouts, "Long Live the King". The Pimpernel has proactively gotten Jeanne's freedom. After 17 days in jail, Percy is certain that the dauphin has been shipped securely into Holland. He then, imagines, by professing to break and admit his whereabouts, to make his departure.