The Treasure of All Ankh Amon

During a journey to Egypt, a strange old man who claims to be the descendant of the last pharaohs gives you before dying an old document covered with incomprehensible signs. Fortunately one of your traveling companions, a prominent Egyptologist, deciphers these hieroglyphs for you; here is the translation he gives you: ANKH AMON, IN HIS POWER INFINIA, HIDDEN HIS HOLIDAY IN THE SECRET ROOM. THE TRANSITION IS FOUND IN THE SPINX SACRE WITHIN THE LARGE PYRAMIDE. ONLY THE INITIE THAT KNOWS THE SECRET MESSAGE COULD HAVE ACCESSED TO IT.