The first excavation conducted by the Oriental Institute was in Egypt at Medinet Habu, one of the sites he had recommended. Breasted returned to Egypt frequently; between 1922 and 1927 he supported Howard Carter's excavation of Tutankhamun's tomb. He applied his expertise in deciphering seals, and was present during the dismantling of the shrine that contained the King's sarcophagus. He also acted as mediator between Carter and the Egyptian authorities during the dispute that halted the excavation in 1924–25. He was often accompanied to Egypt by his son Charles who, under an assumed name, wrote first-hand reports on the Tutankhamun excavation for the "Chicago Daily News" and "The Christian Science Monitor".