Travis and Jillyanna wasn't around at home due to the meeting. Valkyrie was busy shifting between two rooms to check on the monitors. Hawk and Savannah left the place and went to the station to get some information.
Between the gaps of shifting from the two rooms, Valkyrie didn't notice anything at first. He decided to focus on the monitor in Savannah and Hawk's room since there were body guards around who can help him check if there's any intruders in Jillyanna's house.
He rewind everything from the time they left and fast forwarded everything to check for any changes. He even caught the two checking the place and finding the cave.
When they left, a man arrived alone. He was wearing a black hoodie that covered his whole body and a black gloves for each of his hands. Since he was looking down, the hoodie covered his whole face, making anyone unable to see him.