A thing I love about Gertrude Robinson:
Though she is technically an Avatar of the Eye (per her job contract and her supernatural abilities), she is fundamentally a "pandeific" being.
We get reminded over and over and over how aligned she is with other entities.
Annabelle Cane in MAG147, "The Weaver"
Gertrude Robinson, described by Michael in MAG101, "Another Twist"
Gertrude Robinson, talking to Arthur Nolan in MAG145, "Infectious Doubts"
Let's continue with those two episodes--she's Desolation and Spiral as well as Web
(not to mention that she survived binding herself to Agnes, and during that ritual her "lungs try to burn [her] alive from the inside out," and that she just overall has quite an affinity for fire and explosions)
Eric Delano confirms her willingness to lie as well in MAG154
The common symbol of The Dark (or at least Maxwell Raynor's cult) is a closed eye; in hiding from Elias, she too takes on that aspect of the Dark
This one, Jon says outright in MAG167, "Curiosity"
And I think that leads to her affinity with the more "metaphysical" aspects of the Corruption. This one doesn't have as obvious evidence, but understanding that the Corruption covers toxic relationships (MAG160.02), relationships where one being is used up by another, then what else characterizes even her most positive and genuine relationship?
(MAG111 "Family Business" and MAG137 "Nemesis")
That covers 7 out of the 14. I gotta think more about the last 7, but she definitely became enmeshed in so many parts of the Fears