Hollow: Ghost Box, EVP & SLS

The door has appeared. Now it’s your turn to knock. The 13th Knock, Hollow’s limited-time Halloween ghost hunt, is here. Point your camera at a familiar room, tap the screen three times, and begin a paranormal exploration that makes every corner worth a second look. Open the ghost camera to capture what’s in front of you. Turn on the front camera to record your own reactions. Follow magnetic field readings, sound levels, and changing instrument displays as you explore. In a quiet room, even a faint sound can make you pause. When your exploration ends, put on your headphones and listen back to your EVP recording. Whispers, echoes, and sounds you didn’t notice at the time make the audio playback worth a closer listen. Your exploration history saves each completed session and its count of multi-channel anomalies, ready for you to revisit and compare. With Hollow Pro, you can now customize how long you explore, then replay and share your exploration videos. If a sound or a small detail made you stop, share the recording with a friend. Don’t tell them what caught your attention just yet. See if you both hold your breath at the same moment. Tonight’s exploration starts with a knock.