Occurring in a reimagined contemporary Edinburgh in which a tectonic fault has produced a new volcano in the Firth of Forth, volcanologist Surtsey sets out to find who killed her boss, who is also secretly her lover, without disclosing the affair or her discovery of his corpse When volcanologist Surtsey finds her married lover dead, she pockets his phone and makes the fatal decision to keep her discovery secret … but someone has been watching…