Gandalf’s reasoning for leaving is that he has to take care of “ ‘...some pressing business away south…’ ” (136). He leaves right before Mirkwood and does not return until the Battle of Five Armies. During Gandalf's absence, Bilbo has to fill the leader position when the dwarves get in trouble. Bilbo has to be courageous and act quick when the dwarves get captured by spiders, imprisoned by elves, and refuse to face Smaug. At the mountain, Bilbo is left to figure out how to open the door and get rid of Smaug. Doing all these tasks significantly improves Bilbo’s role in the book of the protagonist. Bilbo’s acts of bravery in Mirkwood and the mountain even out the amount of heroic deeds performed by Gandalf and Bilbo. By the end of the Battle of Five Armies, the dwarves have equal respect for the two heros. Gandalf plays a key role in Tolkien’s The Hobbit by leading the group in the beginning, having a quality to know when he is needed, and giving Bilbo the opportunity to become a hero when he leaves. Gandalf agreeing to help the dwarves on their mission lead to a successful and character building experience for Bilbo and the dwarves. He built Bilbo up to the hobbit he has become by the end of the book. Gandalf teaches the group priceless knowledge not just about fighting opponents, but about good friendships and the true values of