Derek stared back at her with the same "what the fuck" expression on his face for a moment before the baby let out a particularly loud and high-pitched scream. At that point, he winced. "Great, how long have you been standing there just letting it scream?" he asked, annoyed. It wasn't obviously the baby's fault that he or she had been abandoned there. "For fuck's sake," he sighed, striding forward and brushing past Lydia, both scooping the car seat up by the handle and unlocking the loft's door, using one hand for each.
"No wonder, you're one of Scott's, of course you let it cry, because that's how his stupid pack works," Derek muttered, annoyed, under his breath as he pushed the door open and let himself inside, leaving Lydia in his wake. "Everything is only your problem if it's directly your problem." He sets the car seat down on the desk and looks down at the crying baby sympathetically. He or she is wet, he can smell that much. "Oh no, that doesn't feel good does it? I know, hey it's okay, shh, shh, shh," he hushed gently, looking back over his shoulder. "No bag? Just a baby?" he asked Lydia, frowning before looking back at the baby and belatedly noticing the envelope tucked into the seat off to the baby's left.
"Whatcha got here, huh?" he asked the baby rhetorically. "Go make yourself useful, Lydia, see if there's a bag out in the hall somewhere, will you?" he added as he started to open the envelope.