Istrid Horn is a Shield dwarf member of the Zhentarim and is regarded as the Master of Trade and Coin in Waterdeep. She is currently in charge of the Doomtaker’s faction of the Black Network after the other members were arrested.

The shield dwarf operates an illegal lending operation out of a heavily guarded warehouse in the Dock Ward, offering loans to those in need of coin. Her interest rates are comparable to those of her competitors, but the penalties for not paying back Istrid’s loans are severe.