Night Masks

R.A. Salvatore's The Cleric Quintet tells the tale of the
scholar-priest Cadderly, who is plucked from the halls of the Edificant
Library to fulfill a heroic quest across the land of Faerûn.
The
assassins of the Night Masks stalk the shadowy streets of the city of
Carradoon, led by the sinister killer known as Ghost. Cadderly
struggles against the dreaded Chaos Curse in these dark, evil-haunted
alleyways, with a silent death around every corner.
R. A. Salvatore
Robert Anthony Salvatore (born 1959), who writes under the name R. A. Salvatore, is an American author best known for The DemonWars Saga, his Forgotten Realms novels, in which he created the popular character Drizzt Do'Urden, and Vector Prime, the first novel in the Star Wars: The New Jedi Order series. He has sold more than 15 million copies of his books in the USA alone and twenty-two of his titles have been New York Times best-sellers.
The Cleric Quintet
Series contains 5 primary works and has 5 total works. Current series reading order on below.
Main series Forgotten Realms