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Liu Sizi and Niu Er fell behind the others, quite a bit further back. So when they encountered the wolf pack, the wolves naturally attacked the two uncle-aged hunters first. It was because of this that Liu Sizi and Niu Er managed to escape.
However, on his way back, Liu Sizi fell and broke an arm, while Niu Er got away with just some scratches from branches and a fright, nothing serious.
As for the two uncle-aged hunters, they were killed by the wolves and then devoured by the pack.
When Mrs. Hongxia saw Liu Sizi return, her heart, which had been worried sick about his safety, was relieved. But seeing that Liu Sizi had broken his arm, she was at her wits' end because they didn't have the money to treat him.
