Taking comfort in her steady voice and the words that he could pick up and understand, Severus managed to squeeze her hand right back, albeit more weakly than she had. He felt coherent thought swirling in his brain and he imagined that he might even be able to move his limbs if he tried; certainly not the cut up arm, but everything else... yes, as he tested his toes, they moved slightly in his shoes and he became encouraged a little too quickly, trying to lift his head and feeling another wave of strong nausea hit him.
"Blim'y..." he slurred out, resting his head back down on Lily's lap while trying to steady his breathing. He watched her every move through hazy vision, and now, even that was starting to clear up with the tears that she'd earlier wiped away. Blinking a few times, he felt confident enough to try speaking again, to urge further action now that he knew what was happening to him:
"'need Slughrn, he 'as potions..." he murmured, staring up at her with as pleading an expression as he could manage. He felt exhausted, like he'd just run a few marathons in a row, but he wouldn't let himself fall asleep... not just yet.