Three cousins venture through time to 1862 where they must deliver their aunt's mysterious sword to General Ignacio Zaragoza in time for the Battle of Puebla in Mexico.

Emma Otheguy is the author of several books for young readers, including the picture books A Sled for Gabo and Martina Has Too Many Tías, the bilingual picture book Martí’s Song for Freedom, and the middle grade novels Sofía Acosta Makes a Scene, Cousins in the Time of Magic, Silver Meadows Summer, and, with Adam Gidwitz, The Madre de Aguas of Cuba, part of the Unicorn Rescue Society series. Visit her at EmmaOtheguy.com.

Poly Bernatene was born in 1972 in Buenos Aires, Argentina, and has been drawing ever since. He graduated from Buenos Aires’s art school, where he developed a great interest in managing different techniques in his work. He has worked in advertisement, animation, and comics. During the last fifteen years, he has established an exciting career as a professional illustrator, having published more than sixty children’s books in eleven countries.