You know you want want.
From the release:
Spot of Bother Set Two: Top Secret Headquarters is everything you will need to build your very own secret villainous headquarters hidden deep below a forgotten mountaintop.
The modular terrain system allows you to customize your walls and floors for hundreds of variations and layouts. The fold flat walls hide away easily in a shoebox for convenient storage. Build what you need and add to the layout as you go.
A cadre of villainous minions and an evil boss is provided as well as some machinery and furniture to help further their plans of world domination.
Note: this product is BIG! It is spread out over two downloads. Make sure you open both files.