When inspecting the egg: The egg quivers and cracks open. When Ishhara is unlocked: You have unlocked Ishhara, the corrupted scorpion pet. It can be found and summoned from the pet interface. When searching for the egg, if the minimap is large enough, players can spot the egg's red dot from each district's Shifting Tombs entrance (excluding Imperial district). A good method of finding the egg is to stand at the Shifting Tombs entrance, quick travel to the other 3 districts, hop worlds, and repeat, all without moving.