Prisionero B-3087 (Prisoner B-3087)

De la pluma de Alan Gratz, autor bestseller del New York Times con su novela Refugiado, nos llega esta desgarradora historia que cuenta la lucha de un niño por sobrevivir a diez campos de concentración durante el Holocausto. Basada en la inspiradora vida real de Jack Gruener.

10 campos de concentración.

10 lugares donde pasas hambre, eres torturado y trabajas hasta la extenuación.

Nadie imagina que se pueda sobrevivir.

Pero es a lo que Yanek Gruener se enfrenta.

Es un niño polaco en la década de 1930 y está a merced de los invasores nazis. Todo lo que tenía y todo lo que amaba le ha sido arrebatado de la manera más brutal. Y el mismo Yanek es tomado prisionero y en el brazo le tatúan B-3087, su número de prisionero.

Lo trasladan de un campo de concentración a otro mientras la Segunda Guerra Mundial sigue su curso. Conoce el mal que nunca sospechó que existiera, pero también hay destellos de esperanza en medio del horror. Logra escapar de la muerte, solo para enfrentarla otra vez unos segundos más tarde.

Será capaz Yanek de sobrevivir al terror sin perder la esperanza, la voluntad y, sobre todo, el sentido de quién es él en realidad?

Basado en una asombrosa historia real.

From Alan Gratz, the #1 New York Times bestselling author of Refugee, comes this wrenching novel about one boy's struggle to survive ten concentration camps during the Holocaust. Based on the inspiring true life story of Jack Gruener.

10 concentration camps.

10 different places where you are starved, tortured, and worked mercilessly.

It's something no one could imagine surviving.

But it is what Yanek Gruener has to face.

As a Jewish boy in 1930s Poland, Yanek is at the mercy of the Nazis who have taken over. Everything he has, and everyone he loves, have been snatched brutally from him. And then Yanek himself is taken prisoner -- his arm tattooed B-3087.

He is forced from one nightmarish concentration camp to another, as World War II rages all around him. He encounters evil he could have never imagined, but also sees surprising glimpses of hope amid the horror. He just barely escapes death, only to confront it again seconds later.

Can Yanek make it through the terror without losing his hope, his will -- and, most of all, his sense of who he really is inside?

Based on an astonishing true story.

Author: Alan Gratz,Ruth Gruener,Jack Gruener
Publisher: Scholastic en Espanol
Published: 01/06/2026
Pages: 272
Binding Type: Paperback
Weight: 0.42lbs
Size: 7.62h x 5.38w x 0.66d
ISBN: 9798225030193
Language: Spanish
Audience: Ages 9-12


Review Citation(s):
School Library Journal 02/13/2026 pg. 1

About the Author

Alan Gratz is the #1 New York Times bestselling author of several highly acclaimed books for young readers, including Heroes: A Novel of Pearl Harbor, Two Degrees, Ground Zero, Allies, Grenade, Refugee, Projekt 1065, Prisoner B-3087, Code of Honor, and Captain America: The Ghost Army, an original graphic novel. Alan lives with his family in the Pacific Northwest. Look for him online at alangratz.com.

Ruth Gruener was born Aurelia Gamser in 1930s Poland. Ruth and her parents survived the Holocaust by hiding in the homes of Gentile families. After World War II was over, Ruth and her family moved to the United States, where Ruth tried to start an ordinary teenage life in Brooklyn. Ruth married Jack Gruener, another Holocaust survivor, with whom she lived in Brooklyn until Jack's passing in 2017. They have two children and four grandchildren. Until her death in 2021, Ruth worked as a docent at the Museum of Jewish Heritage in downtown Manhattan and traveled all over the country to speak to schools about her and Jack's experiences in the Holocaust.

Jack Gruener's true life story was the inspiration for Prisoner B-3087. Born and raised in Poland, Jack survived the Holocaust as a young boy and eventually came to America. He married fellow Holocaust survivor Ruth Gruener, and they became authors and advocates. Jack passed away in 2017.