Brianne was sitting at her desk, a half-eaten slice of pizza lying, half-forgotten on its plate, beside her mouse, checking the inventory list when there was a knock at the door. Without bothering to turn around, without bothering to take her eyes off the screen, Brianne called out a brisk, “Come in.”             “Ah, hey girl…”             At the unusually hesitant sound of Shana’s voice from behind her, Brianne finally pried her eyes away from the numbers ahead of her. Shifting slightly in her seat, she brought her eyes up—and stilled uncertainly at the look of bemused curiosity in that younger woman’s gaze.             “What’s up?” Brianne was already…