The lich screams in rage, attempting another spell, but by this time, the dragon is on him. In a last, desperate attempt, he does something that would, simply put, be considered quite insane, under any circumstance; he uses a quickened spell, to remove a portion of the well, containing the powerful magic liquid, letting it gush over the floor, rather quickly, though it won't drain the pool, merely lower its level, as it floods the floor with a thin layer.