From here you need to progress to the Wadjet Canyons, the exit is located to the north-west. There you'll also meet a desert trader named Seda, giving you your second side quest. To the north (near the small oasis) of the Hathor Basin you'll find a cave, leading to an isolated plateau in the eastern Wadjet Canyons (the next region). On that plateau you will find an old temple ruin with some Dune Raiders guarding a Royal Coffer.