Bookshelf ControlAux in Defense room won't glow?

So I have a Defense room: Death trap 3X3. I am allowed to put in those arcane control Bookshelves yet they won't glow. I am told they won't as I need something attached yet I don't know if it's possible. Is this a fact or is there some way to make them glow inside a Defense room?

You'll need to have a Magic Axis, the basic control main item (arcane) for the Bookshelf to attach to before it'll illuminate.

It's the end. But the moment has been prepared for ...

Yeah, all the active items are set up this way.

You need a primary item first, and auxiliary items attach to it.

Bookshelves are an auxiliary item.



-np