A successful story (Letting Go), I'd say. The door for Skull's return is open a little wider than I expected, but it's not to the detriment of the arc. I hope some time passes before we enter a similarly epic "Search for Skull" arc (during which a "Khaaan!" moment would be entirely appropriate :).
The silhouette really works in this strip; I wish we didn't see it so often in such un-important moments.