Gesen Bow String

Gesen Bow String is an item found in the Asylum Dungeon. It can be found in the locked chest in the vault in which some inactive golems are standing still, but they will be activated after unlocking the chest. This item appears in Baldur's Gate II: Shadows of Amn. Cromwell can use this item to create the Short Bow of Gesen, if the Gesen Bow Shaft shaft is in the possession of the player character as well.

In-game description
"This is one part of the Gesen Bow, a powerful short bow created by Gesen Khan... and used on its own creator when it was stolen by the Shadow Thieves. Legend relates that the bow fires bolts of lightning instead of arrows, and it has been highly sought in the past by Shadow Thieves for use by their assassins and by Cowled Wizards for study.."