The tension does indeed build, and it is tantalizing.
The visuals in this one are truly beautiful. Something about the thin-lined backgrounds gets to me. Some of the perspectives used are a bit weird, but I adore the architecture. The winding staircases, the wide-spread chasms, the NOTHING. It's so simple yet so brilliant. What makes a place spookier than the feeling that something should be there but isn't... or that something is there, but you can't see it? The statues of figures with obscured faces, the halls that serve seemingly no purpose. There is nothing in the castle to suggest it was made for human life. It has the exterior features of a real castle, but it's hollow. It's a subtle way to unnerve you and it works marvelously. The lighting in the helicopter scenes is also gorgeous and very atmospheric. Fewer close-ups this time, which means less wonky eyes, though they are still there.
I felt like Etrius' dialogue was a bit better in this one, or at least the voice acting was. The banter between him, Beecher and Lloyd gives you a decent idea of who they all are without needing to go into detail. It's perfectly serviceable for a series about monsters in castles. It's not really about the characters, but more about the underlying attitude of disillusionment and desperation that underscores their interactions. Dr. Romanov's lines were the weakest and are the reason I'm taking off half a star.
Overall, this one really gets you hyped. It's really good build-up but, despite not having the pay-off in the same movie, it doesn't feel unsatisfying. It's also got that slight bit of character development and introduction.

Love it

Well once again you bring us some amazing art and graphics in these with awsome detail and a fun story really enjoyed this one here make more of this

~X~

The quality for a 2007 flash animation is out of the chart

This is getting tense. Fantastic job on the shots, architecture, and everything.

This episode is lovely as always, but the one thing that was mildy bothering was the helicopter noise loop during the landing on the castle; it was very obvious that it didn't loop together very well. Everything else is perfect though.