On your stomach, looking through cracks in a wooden ceiling, peering down into a jail cell, there she is, quiet, worried that nobody will be able to save her. A guard walks nearby her. You’re wondering how to tell her that she needs to bring the guard inside her cell, so they can ambush the entrance? Then you gesture with a piece of copper wire and mumble to cast Message, “Here to help. Get the guard to come inside your cell, so we can ambush.” She responds, “Where are you?” No more communication exists, hopefully she becomes impatient and does as you’ve suggested.