Not a single rhino was poached in the Hluhluwe-iMfolozi Park in January (compared with about 30 a month just three years ago). But the poaching assault in KwaZulu-Natal's most famous rhino reserve is far from over. Bleached by years of sun and rain, the skulls of hundreds of rhinos have been piling up steadily in the "boneyards" of Africa’s oldest game reserve. Most skulls have an aluminium identity tag fixed to them with a ring of steel wire passing through empty eye sockets. But it's impossible to count accurately just how many skulls are stacked in the graveyard visited by Daily Maverick last week in the central Nqumeni section of the Hluhluwe-iMfolozi Park. Or the exact manner of their deaths. Some may have died relatively quickly. Shot through the brain using heavy-calibre rifles. Others are more likely to have suffered a much slower and agonising death. Their lifeblood was probably still dripping into the soil from bullet wounds that punctured their hearts or lungs when the poachers hacked off their horns hurriedly with an axe or panga.