Humphrey, the pet hamster of Longfelow School's Room 26, learns that his classroom is full of secrets, the most important of which is that a student will be leaving soon.

"To Humphrey and the students at Longfellow School, spring seems impossibly late this year. Fortunately, planning a school Family Fun Night keeps the students (and classroom pets) busy as they look for signs of the changing seasons"--

"Puedes aprender mucho acerca de la vida observando a otras especies. Eso es lo que primero le ciden a Humphrey cuando lo llevan al Aula 26. ¡Y vaya si es verdad! Además de sus escapadas en la clase, este increíble hámster va cada fin de semana a dormir a la casa de un estudiante diferente. En poco tiempo, Humphrey aprende a leer y a escribir, y a lanzar gomas elásticas, pero solo en defensa propia. La vida de Humphrey sería absolutamente perfecta,...

Hay una nueva mascota en el Aula 26: es una rana y se llama Og. Humphrey está deseando hacerse amigo de Og, pero Og no parece interesado. ¡Y, para colmo, los estudiantes están tan fascinados con Og que apenas prestan atención a Humphrey! Humphrey sabe que la amistad puede ser a veces algo complicado, pero si un hámster es capaz de hacerse amigo de una rana, ¡ese es Humphrey!

Og loves the kids in Room 26, but he's awfully curious about the human world outside his tank! His friend Humphrey has no problem getting out and about, but it's harder for Og because he can't climb the way a hamster can. But Og never let hard work or fear stop him from going after what he wants. And he's determined to help the tads in Room 26 understand that taking risks can pay off -- especially when they are being true to themselves. Whether it's...