The pain in his voice cut right through her armor, through mail and skin and right to her heart. She could feel the uncertainty and despair, not just hear it- but despite the ache it placed in her chest, Sif's resolve strengthened. As she would if Thor were downed on the battlefield, she would be there to defend him from an army of death blows, and bring him back to his feet.
"Beloved-" she breathed, moving her hands to the back of his neck, strung gently through his hair. "Look at me..."
She dipped down enough to lock his eyes with her own, and made sure she held them there in raw honesty. "The heavens are missing no armies, and that was not your mother-" she told him with unwavering certainty. "They are shades... tricks of some magic meant to wear us down. Nothing more."