The letter is written methodically in careful script, every "i" dotted and every "t" crossed
Sergeant Greyward,
As a cleric of Helm, it is my duty to be protector and guardian of this city Sanctuary. I regularly patrol the city of my own accord, watching over the citizens as best I can. During a round recently, I spoke to an associate of yours named Venom, a half-orc who told me about your organization. I wish to offer my skills and servitude to the Civil Defense League as I find that what your organization is doing a noble objective. Please respond back, enclosing information I might need and asking anything of me you require to make my membership possible. You can reach me at the Helmite Shrine just outside of Sanctuary's upper gate.
Sincerely yours, Edward Gibson