This note is encoded using a character substitution cipher: A=H, B=L, D=C, E=V, F=P, H=D, I=N, J=A, L=F, M=U, N=X, O=G, R=O, S=T, T=I, V=W, W=S, X=E, Y=R, Z=M.
Joslin Stoinles, Black Ogre Tavern, Bal Oyra
EJIXYTW SAXIXYTJ, RL SAX LTYXVJSDA DAFSXY, TW J SYJTSRY. WAX AJW VXXI FJWWTIO TILRYZJSTRI SR ARMWX SXBEJIIT LRY JBZRWS WTN ZRISAW. TS TW SAYRMOA AXY SAJS SAX SXBEJIIT BXJYIXH RL FBJIW SR TILTBSYJSX SAX SXBEJIIT DRMIDTB ARMWX TI FRYS SXBEJIITW.
-ZO-OW
The translated text is:
VANERIS THENERIA, OF THE FIREWATCH CHPTER [sic], IS A TRAITOR. SHE HAS WEEN [sic] PASSING INFORMATION TO HOUSE TELVANNI FOR ALMOST SIX MONTHS. IT IS THROUGH HER THAT THE TELVANNI LEARNED OF PLANS TO INFILTRATE THE TELVANNI COUNCIL HOUSE IN PORT TELVANNIS.