The first location is near the entrance to the area around the tower. To use the lamp open the circular toolbar and select the magic lamp. It is then usable with the quest item button, middle mouse button on the PC. The second location is behind the tower. The third is in the first room when you enter the tower. The fourth is in the basement of the tower. The fifth is on the second floor of the tower. The sixth is in a room on the third floor of the tower. The last is at the top of the tower.