The following account was recorded in the agent's log during your transmission: Massive stone arches rise up, piercing the pale orange hue of a late afternoon sky, Echo. A series of concentric, crystalline circles radiate from the center of this old, drained impact lake, as if they've been inscribed by some impossible, kilometer-long compass, and the air's crisp, with a faint scent of damp clay. Water somehow flows uphill, refilling this lake's series of interconnected, gravity-defying canals that crisscross its surface like... veins on a leaf. A low-frequency hum, almost inaudible, is still somehow resonating through my entire body, Echo.