I travelled to Kenya from San Francisco on May 9, 2019 with Noth, stayed in Kitengela, a surburb of Nairobi. On May 16, 2019, Noth and I went walking and came across a herd of zebras and wildbeasts..Noth was off leash. He took off running after the wildbeasts as they run away. I called him back him and the wildbeasts disappeared into the wilderness. I searched for him until dark without success, and returned to the house hoping he will follow our scent home. The following morning he wasn't there..we contacted Kenya wildlife Service, and two agents initiated a search. We searched for Noth all day on May 17, 2019 without success. On May 18, 2019, I organized another search and we combed the area to no avail..I contacted the deputy warden in charge of Nairobi national park and she suggested we contact petlink to see whether we can locate the coordinates of the microchip so they can do a helicopter flyby.