What is this place in the twilight forest?

[Toadzilla]

Kinda came upon it...thought it was a lich tower at first ,but then i saw that it looked nothing like it (no lich either).


First is just an outside pic

This one is the doors that are there (right click, the block turns green, and opens)

This one is this little bug thing that deals damage and carries me around in its jaws

Last one is in the main tower, at the top (or what i think is the top), with a bunch of mini-ghasts (and spawners) and random levers (which im not flipping yet)

Sooo, what is it xD

 

[DZCreeper]

Lich tower. If your on a server maybe someone already bet the Lich? I might be wrong about what it is.

 

[Lakart]

Tha'ts not the lich tower, it's that other tower(don't know the name of it) that wasn't finished last time the modpacks were updated. Dunno if its finished in DW5/MC8.

EDIT: Dark Tower, apparently still WIP http://twilightforest.wikispaces.com/Dark+Tower

 

[Vovk]

It is called a dark tower
http://twilightforest.wikispaces.com/Dark+Tower