Lucidstuck II

And this is exactly what I was worried about. The construct comes from the power of illusion. Illusions only work if you can't see past the trick. If reality is one explained-magic-trick away from falling apart, Lucia's knowledge and general instability represents a palpable threat to existence. She is likely our savior and most important figure bar Derrick, but she's a double-edged sword. We can't just use her to explore things we want to know.

Progressing too far with Red!Derrick is also a path to destruction, just a different one than I feared.