While playing you can always switch between being an orc or an elf.
The stone teleports them to the destination cave, but the result is not as expected: the magic travel wasn't prepared for two beings at the same time, and now the man and the fly the orc and the elf woman are fused.Once they get used to their new body, they get into the enemy lands, going through a neardeforested wood followed by a village, finding tougher new enemies. But the region is protected with a magic shield that can't be destroyed by brute force.