The Banshee's Tower

From the publishers blurb: This is an OSRIC adventure for characters of 6th to 8th level. Travelers have complained recently about hearing strange noises and seeing strange things at an abandoned elven tower on the outskirts of the great forest. Some of these travelers have even reported deaths among their companions from mere firght at what they have seen or heard at the tower. Legends about this tower are that it once belonged to a banished elven princess. The elves of the woods sieged this tower several hundred years ago. Few humans remember the reasons why, But a few bards mention a legendary harp made of solid gold once owned by the princess. And it is said to have incredible magical powers.....