Owen"s headache intensified as he tried to figure out a way to move the stone. He blinked, trying to focus, but everything was blurred and shifting, and breathing was getting difficult. No matter how deeply he inhaled, he found it harder and harder to get enough air. Claire eyed him, concern on her brow. “You"re feeling it too, aren"t you?” He nodded and ran his tongue around the inside of his mouth, trying to get rid of the dry, acidic tang. He eyed Thad, the glancing at Claire knowingly, said, “I think there"s something down here gasin" us. I can"t see straight.” “Could be CO2, although we"re not very deep,” Thad said. “Whatever it is, we better figure out how ta move that rock, an" get out of here quick,” Owen said, trying to still the panic in his heart. Things were ganging up on t