The Traveling Merchant is located in the east corner of the Map "Croakwood". The target of this quest is in the southwest corner of the map. Before you start the quest, make sure you clear the entire path of the enemies. This is IMPORTANT!
After you clear all enemies, go to the merchant and start the quest. A group of enemies will be spawn. I use a Ice skill shot to frozen and kill the enemies (IcICLE SHOT Hunter Class) after the group go straight forward to the Romany Camp. Normally you have here no enemies and can reach the camp without any problems.