Very promising series [spoilery review]
The music was terrific, the graphics were fitting, the atmosphere went well. The story seems interesting, and it looks like the sequels are going to be coherent, so the series as a whole seems promising.
However, the puzzles seemed a bit random to solve (how should I guess that the flickering C means only those objects that begin with a c should be lit up?). The clues could be a little more direct, or some objects may be clickable everywhere, such as light switches (this would make White Darkness easier to guess).
The pointer was also slow to respond at times, and the game sometimes devolved into pixel-hunting.
Also, "Goat-Box"? Is that the best you could come up with for runes?? :D