Kelly Gibson (Inorganic Geochemist, University of South Carolina, USA) shows off her pumpkin mask during the Halloween science meeting. Harry Potter (Daniel Johnson [Inorganic Geochemist, California Institute of Technology, USA]) and a shark (Anna Drury [Physical Properties Specialist, University of Bremen, Germany]) are also in the audience. (Credit: William Crawford, IODP JRSO) [Photo ID: exp363_125]