I'd personally prefer to lay low till we can next send a message, and just learn to read and given Xochi can't read either see if she wants to join. Then send a message to Matal and see if the Wise men are capable of detecting what we did to ourselves, and if so what the reaction would be. Something a skilled and very lucky tribal could do (which is pretty much what happened, as we've received no other spiritual knowledge)?
We'd also need to see if he'd want to explore the ruins with us too and if he can recover anything, and see what that skull does.