High Hedge Estate is the home of the mage Thalantyr the Conjurer, it also doubles as a store, offering numerous scrolls, potions and magical items for sale.
The building is patrolled by two Flesh Golems which appear hostile on sight and are very dangerous for low level parties. Instead of fighting them – be aware of party members' AI attacks –, you can walk past them and head straight to talk to their owner, who'll turn them neutral for you. Alternatively, you can kill them for 2000 XP each, with no side effects.
Even though he says that he is interested in buying magical items, Thalantyr will, in fact, buy pretty much anything that you are carrying except ammunition and some quest items.