I've heard of these beings before, the clicking sound is a dead giveaway of their race, and it is how they communicate. I'm not sure about how they conduct abductions though, it is most likely done by changing the vibrational frequency of the abductee, and then transporting them through into another plain of existence, or you could say dimension. The abductee talked about being taken down stairs while they were floating above the beings heads and taken into the living room. This is what they would've remembered, however it is very unlikely this is actually what took place. The mind filled in the unfamiliar space around him with a familiar space that makes him feel comfortable. This actually could have been the beings doing this, trying to make the boy as comfortable as possible, making him believe that he is in a familiar area, when he is really somewhere totally different. Its quite rare for real abductees to actually be able to recollect the past event, if this is real, it is really remarkable.