Earn the favor of Ilchorin, the spirit in Lake of Solace off Shimmersand
On our island, I would have constructed the necessary focus with a powerful deposit from the Sourcewell. A powerful piece of Air sourcestone should be a good substitute. Search the most powerful Air rifts for one. I will also need the help of a powerful spirit of Water.
Though this land does not have as many as Kelari, Lake of Solace is inhabited by one such: Ilchorin. I do not know where in the Lake he is. You will have to find him.
With Ilchorin's power, I can create a focus powerful enough to purge the connection to Akylios.