Shmuel lifted up the fence for Bruno to fit under. Bruno tells a brief story about his Grandmother, and how she always dressed up in plays with Gretel and him.
While Bruno and Shmuel were looking for clues about where Shmuel's Papa had gone, soldiers ordered them to a march. It was rainy and wet, but the soldiers didn't care.
The soldiers led the marchers to a "bathhouse." They ordered all of the marchers to take their striped pajamas off, and to fit in the tiny space together. The marchers thought they were taking a shower.
Oh, that's how he went missing!
Bruno, I don't think this is going to be good. Papa was taken on a march, but he never came back from it.
So, as it turns out, the "bathhouse" Bruno and Shmuel were led to was a gas chamber. Bruno had thought it was only a shower, but the two boys died that day holding hands. After the door had shut, the boys heard a loud, metallic sound ring. This was truly the two boys last adventure, but at least it was with eachother.
You're my best friend for life, Shmuel.
Months after Bruno had passed, Father had returned to the fence where the boys had met, Mother returned to the house in Berlin hoping Bruno would be there, Gretel spent most of her time crying, and Father also became more strict with his soldiers.