Having gotten Aster's confirmation Mylene nodded and then dispelled the barrier she made with her spirit energy, before turning to see Ixas again.
"We can help you out, but the conditions have to be different, first you won't act against us, nor reveal any information about what you'll se or experience, second you'll help us through the out journey to where the Emerald Whirlwind is, but won't participate in the trial nor try to steal it we get it".
Right now, the Emerald Whirlwind isn't tied to anyone and so, its powers are at its current peak, besides that, this secret realm is apparently under its control, so it can't be forced to obey by anyone.
But someone becomes its master, then its powers will adjust to the one who wields it, meaning that it could be stolen by others, of course that would be the same as killing the previous owner.