As Ugnar enters the left passageway, he notices two things. One, the two passages actually lead to the same place, with a 'pillar' of rock separating the two. Second, the left passage had a side passage to it. From the side passage came the unmistakable scent of goblin waste. And oh boy is it strong. Ugnar manages to keep his food down, but the rest of his party, if they took this passage, might not be as lucky.