What is the mood of story jungle?

The mood of the story "The Jungle" by Upton Sinclair is one of despair, hopelessness, and poverty. The novel tells the story of a Lithuanian immigrant family who moves to Chicago and struggles to survive in the harsh conditions of the city's meatpacking industry. The family is faced with poverty, disease, and exploitation, and the mood of the story is one of constant struggle and hardship. The novel is also critical of the social and economic conditions of the time, and the mood is one of anger and frustration at the injustices that the characters face.