Elie gets Moshe the Beadle to help him.
Buna. :) Hope this helps.
It was ironic that Elie felt relief when his father was beaten by Idek, as he didn't want to be the target of Idek's violence. This demonstrates the extreme dehumanization and survival instincts present in the concentration camps, where one can find relief in seeing harm come to a loved one instead of oneself.