Vad var det för en mystisk, toxisk, dimma som svepte fram över en del av kusten i södra England?
150 personer blev sjuka och fick söka vård med symptom som hosta, illamående och kräkningar.
"When news first filtered through to the authorities about the mysterious haze sweeping the coast, emergency response units were scrambled. Decontamination units were set up, with all people who were affected by the gas having to be cleaned and treated, as professionals prepared for the worst by fully suiting up. Within a few hours, however, the smog had cleared and the beaches were deemed safe enough for people to use again."