Knight of the Inner Circle has the following effect:

Forced - After you enter Knight of the Inner Circle's location (or vice-versa): Test (4). If you fail, Knight of the Inner Circle engages you.

Does this also happen when he spawns? So you can purposedly try to fail to avoid his aloof?

If an enemy spawns at a location, it enters that location. So if the Knight of the Inner Circle spawns at your location, its Forced effect will trigger. Someone else would need to draw it, though - its spawn instructions mean that you can't spawn it at your own location when you draw it.

Thanks for your reply. It was in 4 player and it happened 2 times that those guys were drawn by a seeker and spawned on top of a guardian that killed another cultist last turn on a connecting location. So by failing the test, the guardian didnt need to engage these guys next turn.