Annabeth leads the quest into the Labyrinth, fulfilling one of her ambitions. She goes into the Labyrinth with Percy, Grover, and Tyson to find a way to stop Kronos's evil forces from entering the borders of Camp Half-Blood by searching for the Labyrinth's inventor, Daedalus. The prophecy the Oracle gave her appears to have scared her and she refuses to say the last line. As they go into the Labyrinth, they face many hardships. Annabeth faces a Sphinx and finds the riddles (which are actually factual questions) not challenging and an insult to her intellect. They escape the claws of the Sphinx and continue on to find Hephaestus so he can tell them about where to find Daedalus.