Retrieve Stalvan's Undelivered Letter from the chest and deliver it to the Canal District in Stormwind.
The name Stalvan rings a bell. I remember now.
Many years back, on a stormy night, a messenger came in, seeking refuge for the night. Near the stroke of midnight, the man ran down the stairs screaming, his face pale with fear. Still wearing his bedclothes, he disappeared into the downpour.
In his haste he forgot his letters in the chest upstairs. He never returned for them. One remains from that Stalvan fellow, intended for the Canal District in Stormwind. Help yourself to it.