Annabeth leads the quest into Daedalus' Labyrinth. She breaks the rule of having only two companions on a quest by choosing Percy, Grover, and Tyson. Annabeth descends into the Labyrinth with them to find a way to stop Kronos's evil forces from entering the borders of Camp Half-Blood by searching for its inventor, Daedalus. They run into many obstacles. 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. Tyson then finds Briares, the Hundred-Handed One, but is disappointed to find out he is afraid of Kampe and refuses to fight. They split up, and Tyson follows Grover, who goes a different direction in search of Pan. They all reunite and flee the Labyrinth after the help of Daedalus (Quintus).