Louis Weinert-Wilton

Professor Wilkens has invented a formula for a new type of fuel and puts it on a microfiche that he sends to his daughter and her bodyguard, but multiple different mysterious groups, including the "Chinese Carnation", would kill to get their hands on it.

Someone is killing people related to a South American expedition. The means of murder are poison darts with rubber spiders attached to them. A writer and some police detectives investigate.

After an automobile accident, in which a man is unrecognizably burnt to a crisp, his wife's only able to confirm the corpse's identity by his talisman: a small, white spider. However, soon, there are more corpses walking around than at a comic con convention and every single one of them was a white spider sitting on or nearby the body.

En Londres son cometidos varios crímenes por el mismo procedimiento: una intoxicación a través de las emanaciones de un misterioso veneno de origen hindú y por las cuales han sido eliminados, sucesivamente, un joven perteneciente al servicio de contraespionaje, un rico propietario apellidado Milner y su abogado Crayton. Un inspector de policía recibe la orden de investigar el caso y detener al culpable.