Step-by-step explanation:
During the exciting journey, dwarves along with Bilbo encountered so many difficulties and one of them was Spider’s assault. When the dwarves were surrounded by the spiders, Bilbo slipped his enchanted ring on his finger and became invisible. He was distracting the spiders away from the dwarves by tossing the rocks and killing few of them. He also was singing a song which had some offensive words such as “old fat spider”,” Attercop”, “old tomnoddy”, and “lazy lob” to get them intrigued, excited, and angry all at once. The spiders became really upset and kept attacking him. Bilbo went to rescue his friends when the spider was already annoying.