Death is having another flashback. This time, the sky is black, and it's the darkest part of the night before morning.
This time the dead person is a 24-year-old man.
Death sees a crashed airplane, smoking.
Then Death sees a boy approach the airplane, carrying a toolbox.
Then Death sees the book thief.
The boy takes a teddy bear from the tool box and puts it on the dying pilot's chest.
Then death takes the dead man's soul.
The sky is dark, and there's a big crowd.
The dead pilot's face is locked in a grin, and his uniform contrast with the sky.
Until, everything goes black. It's not unusual for Death to see an eclipse when someone dies. In fact, he's "seen millions" of eclipses, more than he wishes "to remember" (3.23).
(Feeling confused about where this story is taking place, in time and place? Don't worry! It will all come clear as the story progresses. Still, sometimes a bit of historical context at the outset can help. So, feel free to check out "Setting" to help yourself get oriented.)
And one more thing, we learn what this chapter means near the end of the novel, so don't forget about it!