If someone were to respond fast enough to see something happening and then react by using a method of essence detection, they would see a bundle of negatively-charged nama in the area by Ciara's bed, pressing down on it. Apart from that, it doesn't appear as if it came from anywhere in particular, it would've seemingly just emerged all at once from nothing; then, just as quickly, entirely disappearing without a trace the moment that the pressure on the bed stopped. Both the sudden appearance and disappearance of that much emotional essence would stand out as odd, as typically the manifestation of power through nama requires long and intense build-up before any kind of physical payoff occurs. It would also be odd that it appeared to not belong to anybody, as though it was closest to Ciara, it didn't seem to emerge from her as it entered, or into her as it left, it simply existed and then didn't.
This is all, of course, hypothetically if one were to analyze the situation as it happened!