"Can you accept us?" Nahak Tusk asked as hope budded in him, one that blossomed upon seeing the Empyrean Tusk form of Gannala nod lightly in response.
Gannala extended her trunk and touched Nahak Tusk, seeping her influence into the latter. In a matter of minutes, Nahak Tusk observed a minor change in him, following which he felt instinctively that he was part of Gannala's immune system.
An Empyrean Tusk accepting a foreign immune system as its own wasn't unprecedented. In Sumatra Chronicles, the baby Empyrean Tusk brought by Resha's parents accepted the 44th Settlement as its immune system.
But a couple of conditions had to be achieved for it. First, the immune system should have no owner. Meaning, the Empyrean Tusk served by the immune system shouldn't be alive. Second, only one immune system could be accepted.