Alyssa pondered on the question before raising her hand to answer,"Professor, they built tunnels and dead ends to confuse people so that it would be harder for them to discover the chamber. It was meant to be a secret place for Salazar Slytherin and he didn't want the other founders or anyone else finding it. So creating a maze of tunnels and dead ends would definitely create confusion and only the determined or the fool hardy would eventually find it."