In the level, Corsair Camp, go up and right untill you come to a woman near the top of the screen. She will ask you to bring her brother back to her. Walk down and a little right down steps and cross the river. Walk upwards untill you come to her brother, then walk back to her. She will thank you. Now walk back near where you entered the level, the woman will be standing by a tree. Kill the corsairs around her and go back. She will open the door to the covered bridge and you can go through. Talk to her brother, he will say that he hid his adventure book but cannot remember where. Break open the barrel in the corner down to the right. You will find the artifact There and Back Again.