They tried to block off my memory, all right. But I had all these bandages all over my arms afterwards. All the way up to my shoulders! [He mimes this to Hubert, excited to be divulging the more gruesome aspects of his recollection.] I took 'em off to see what kinds of things were underneath, and it was all of these neat little cuts and dark, dark bruises. Completely symmetrical from arm to arm. Weird, huh?

So I pieced it together somewhat and remembered a few details. Like the baths of blood, and aaaaall of the Monsters they had lined up on tables...

[Henry's gaze goes ceilingbound, while he tries and fails to recall much more about the Monsters in there. He knows he would have wanted to meet them, communicate with them, or even ask about them, failing all else. But he has no memory of doing such a thing.

He sighs, light and airy.]

I guess the blood was from the Resistance, and the Monsters test subjects for strains of the Cwyld. According to the Three.