La verde doncella (El herbario mágico, 1)

Life isn't easy in the 14th century, especially for Tiago, who lost his family to the Black Death. He's become a streetwise young man, adept at surviving and running from trouble. However, when Friar Silverio gives him a mysterious little bottle of green ink, linked to a magical herbal, his destiny takes a turn he never could have imagined.