Summer

Summer is the season in which the Manham murders unfold, and its persistent heat is more than background: it affects the evidence by which the deaths are dated, while the apparently settled weather contrasts with an investigation that offers no quick return to normal life.

Setting and daily life

At the cottage shared by Jenny Hammond and Tina, summer includes an untidy garden beside a paddock and a view of the lake a hundred yards away. Even a barbecue there is part of ordinary life, though the scene takes place amid the wider crisis gripping Manham. The season also brings the school holidays: children fill the streets with noise while the adults wait for developments in the search.

After a week in which nothing changes, the landscape and the village seem equally becalmed. The weather remains hot and clear, without clouds gathering; the police investigation produces no sign of a suspect or victim. David Hunter returns to his usual hours at the surgery and recognizes Manham as his home, even as he notices that some patients seem reserved. His hope that the disruption will pass belongs to this suspended summer, but events will prove that hope premature.

Heat as forensic evidence

The heat changes how quickly remains decompose, so David treats insects, soil, and vegetation as connected evidence rather than as a simple clock. At one scene, he explains that blowflies may lay eggs within an hour if a body is exposed in daylight. Larvae about seven or eight days old, together with the absence of empty pupal cases, support a preliminary interval of one to two weeks; in the hot conditions, his best estimate is nine or ten days. He cautions that such calculations remain provisional because multiple variables affect the rate of decomposition.

Adipocere provides another check. This substance forms during decomposition and can make the surrounding soil alkaline enough to kill grass. Its brittle, crumbly state is consistent with relatively rapid decay in hot weather, while the limited amount present supports an interval of less than two weeks. In a later comparison at a dead dog, David notes that flies and maggots tend to appear first and beetles later, as the balance of insects changes with decay. The sequence is informative but not exact: the beetles are not as reliable an indicator as maggots.

Repeated findings in the marsh

The hot weather also informs examination of later discoveries. At a marsh scene, David estimates that the remains have been exposed for six or seven days, assuming the weather has stayed constant and the body has not been moved. The condition of the body and the surrounding vegetation lead him to suspect that the victim bled out and was killed elsewhere before being left at the discovery site. He presents this as a preliminary assessment, not a conclusion about who committed the crime.

Laboratory results later confirm that Lyn Metcalf had been dead for about six days. The findings indicate that she had been kept alive for nearly three days before being killed, and that, as with Sally Palmer, she bled out. Low iron levels in the soil beneath Lyn’s body support the conclusion that she died elsewhere and was then taken to the marsh. The hard, baked ground yields no footprints, and rope fibres caught on her broken fingernails are among the few traces recovered. David also takes casts of the cut cervical vertebrae, becoming more certain that the same weapon was used to kill both women.

Summer’s uneven chronology

The season’s heat can help estimate recent deaths, but it does not make every discovery part of the same chronology. A dog uncovers an adult skeleton with no soft tissue remaining; its state shows that it had been there long before Lyn went missing. The distinction matters amid the investigation’s repeated discoveries: the summer heat presses on the living village and accelerates the changes to recent remains, while older remains point to a past that cannot be folded into the immediate sequence of murders.