At the beginning of the 17th century, Cartagena de Indias is the most fascinating city in the new world. All the land and sea routes of the Spanish Empire flow into it, as its formidable fortifications store the gold and silver reserves destined to satisfy the always pressing needs of the King of Spain. But under that apparent flourishing, cruelty, ambition and vices that permeate all social classes of that enigmatic city are hidden. The threat of piracy, prostitution, greed, abuse of power and the most heated passions intertwine in a fast-paced plot. It is on that stage that Alonso, a brilliant Sevillian lawyer, lands, running away from heartbreak. There, almost unwittingly, he becomes the key player in the clash between two opposing worlds: the emerging colonial one and the indigenous and in decline one. With "Between Two Worlds", a rigorous and attractive novel from the first page and with a surprising ending, Amós Milton concludes the story that he began with "The Lawyer of the Indies", who follows in the footsteps of the lawyer who managed, among other feats, to enter an infected Seville prison and free Don Miguel de Cervantes from his captivity, thus allowing Don Quixote to be written.