You have entered an atrium with a round table at the center. Place the engraved pyramid on the table. Get an emblem.

Locate a board inside the alove in the wall. Insert emblem in the empty socket. Four additional emblems will appear. Each pair of emblems combines to make the one below. Rotate the emblems to complete the family tree. The emblem puzzle solution is shown in the image below. A doorway will appear. Exit the atrium.

Enter the study room and locate a power generator. You need to arrange the connectors so there is an unbroken route. The hint is given at the bottom left corner of the panel: – -> + -> -. Slide the bars at the top and bottom of the connectors. Puzzle solution is shown in the image below.

The power generator is now working. Follow the wire to a switch. Turn the switch.

A projector on the tripod is powered up. Open the projector by flipping four switches on the side. Then push the diamond button in the center.

Locate an oscilloscope on the desk. The two dials control the oscillation. Adjust the green frequency to match the black frequency. The device of the tripod will start operate and reveal a doorway.