"Something's wrong with the ground up ahead. Don't step past that cracked line."Wren said it low, one hand raised, the whole group stopping behind her without needing further explanation. Three days of walking had taught Dax to trust her Warden senses the same way he used to trust a scout's read on unfamiliar terrain, fast and without argument."How wrong," he asked."Gravity's doing something there. Feels heavier than it should, like standing too close pulls at you." She squinted into the dark ahead, the road curving out of sight around a collapsed overpass. "I think it's a Zone boundary. We must be closer to the Zone 3 edge than the map said."Priya checked her tablet, frowning at the screen. "Should still be a mile off. Boundaries have been drifting though. Not supposed to happen, but nothing about the Grid does what it's supposed to do anymore."They'd left the pharmacy two nights back, moving mostly after dark to avoid Vanguard patrol schedules, resting in short stretches during