If the ghostblood happens to have a tamu kek or be a Sho Del, they could directly contact a cosmically powerful being (rather than mediating) in the form of a dragon.
There is likely a Connection-based fabrial possible for instantaneous "phone-home" in the late cosmere.
Life is plastic, it's fantastic! Gandalf meets Barbie and even Superman, the Joker and Zombies in this epic plastique showdown for the ages. And it all takes place in someone's basement!
What is the current POTUS like?
Waking up with a "really good idea" and writing it down on the nearest piece of paper as I'm falling asleep. Waking up hours later, seeing the note and finding it supremely stupid.