A large drone with wings the width of the platform flew toward them, a yellow liquid spraying from its underside. It was on her in seconds, and she just had time to gulp air and squeeze her eyes shut as the burning, toxic liquid showered her. Her skin shivered with pain as the oil found every crack and crevice. She tried to wipe it off, lungs filled with the stink of industrial solvents, everyone around her doing the same. Yet more had collapsed, half of the train survivors being carted away on autonomous stretchers.