Anomaly-23

Anomaly-23 is 4 orange creatures that have mutable long tentacles. The creatures are shy and whenever the body is about to be seen it will disappear. How it dose this is unknown. Whenever its prey is near it will reach out its tentacles form behind a object and kill the prey. Then it will grab it and eat it. Heat vison goggles cameras etc have been able to see the body is round with spider like legs and a large mouth with eyes. they are contained in a room with 4 pillars. They have escaped 7 times and harmed 8 people. Currently there is one that has not been found.