Today he could not concentrate on them as they settled at the water.

Instead he fitted a cigarette into his ivory holder and puffed at it restlessly.  This was the spot he had chosen as the rendezvous with the leader of the poachers, and Cheng scanned the encroaching bush anxiously as he fidgeted and smoked.

Still, the first indication he had that someone was there was the sound of a voice through the open window of the Mercedes beside him.

Cheng started uncontrollably and turned quickly to the man who stood beside the motor car.

He had a scar that ran down from the corner of his left eye into the line of his top lip.  The lip was puckered upwards on that side giving him an uneven sardonic smile.  Chetti Singh had warned Cheng about the scar.  It was an infallible point of recognition.  Sali?  Cheng's voice was breathless.  The poacher had startled him.  You are Sali ?  Yes, the man agreed, smiling with only half his twisted mouth.  I am Sali .

His skin was almost purple black, the scar a livid pink upon it.  He was short in stature but with broad shoulders and muscular limbs.  He wore a tattered shirt and shorts of faded khaki drill that were crusted and stained with sweat and filth.

He had obviously travelled hard, for his bare legs were floured with dust to the knee.  In the heat he stank of stale sweat, a goary and rancid odour that made Cheng draw away fastidiously.  The gesture was not wasted on the poacher and his smile broadened into a genuine grin.

Where are your men?  Cheng demanded, and Sali prodded his thumb towards the dense encircling bush.

You are armed?  he insisted, and Sah's grin became insolent.

He did not deign to reply to such a famous question.  Cheng realised that relief and nervousness had made him garrulous.

He determined to contain himself, but the next question slipped out before he could prevent it.  You know what has to be done?  With a fingertip Sali rubbed the glossy streak of scar tissue down his cheek and nodded.  You are to leave no witnesses.  Cheng saw from his eyes that the poacher had not understood, so he repeated, You must kill them all.  When the police come there must be no one for them to talk to.

Sali inclined his head in agreement.  Chetti Singh had explained to him in detail.  The orders had been agreeable.  Sali had a bitter feud against the Zimbabwe Parks Department.

Only a year previously Sali's two younger brothers had crossed the Zambezi with a small group of men to hunt rhinoceros.

They had run into one of the Parks anti-poaching units who were all exguerrilla fighters and armed, like them, with AK 47 assault rifles.

In the fierce fire-fight that ensued, one of his brothers had been killed and the other shot through the spine and crippled for life.

Despite his wound they had brought him to trial in Harare and he had been sentenced to seven years imprisonment.

Thus Sali the poacher felt no great affection for the Parks rangers and it showed in his expression as he agreed.  We will leave nobody.

Except the two rangers, Cheng qua and David.  You know them.  I know them.  Sali had worked with them before.

They will be at the workshops with the two big trucks.

Make sure all your men understand that they are not to touch them or damage the trucks in any way.  I will tell them.  The warden will be in his office.  His wife and their three children are at the bungalow on the hill.  There are four camp servants and their families in the domestic compound.  Make sure it is surrounded before you open fire.

Nobody must get away.  You chatter like a monkey in a wild plum tree, Sali told him scornfully.  I know all these things.  Chetti Singh has told me.  Then go and do as you have been told, Cheng ordered sharply, and Sali leaned in through the Mercedes window forcing the Chinaman to hold his breath and draw away from him.

Soli rubbed his thumb and forefinger together in the universal sign for money.  Cheng reached across and opened the cubbyhole in the Mercedes dashboard.  The ten-dollar bills were in bundles of a hundred, each secured by a rubber band.  He counted them into Sali's open hand, three bundles of a thousand dollars each.  It would work out to approximately five dollars a kilo for the vast store of ivory in the camp warehouse, ivory that would be worth a thousand dollars a kilo in Taipei.

On the other hand, to Sali the sheaves of green bills represented an enormous fortune.  He had never in his entire life held that amount of money in his hand at one time.

His usual reward for poaching a good elephant, for risking his life against the anti-poaching teams by penetrating deep into forbidden territory, for risking his life again by firing at the great beasts with the light bullets of the AK 47, for cutting out the tusks and carrying their galling weight back over heavy broken ground, his usual reward for all that risk and labour amounted to around thirty dollars an elephant killed, say, a dollar a kilo.

The treasury bills that Cheng placed in his hands represented the reward he could expect from five years of hard and dangerous labour.

So, compared to that, what was the killing of a few Parks officials and their families?  It entailed very little additional effort and minimal risk.

For three thousand dollars, it would be a pleasure indeed.

Both men were mightily pleased with their bargain.  I will wait here until I hear the guns, Cheng told him delicately, and Sali smiled so broadly that he showed all his large brilliant white teeth right to the wisdoms in the back of his jaw.  You will not have to wait long, he promised, and then as silently as he had appeared, he vanished back into the bush.

Daniel Armstrong drove at a sedate pace.  The road was fairly good by central African standards; it was graded regularly, for few of the visitors to the park drove four-wheel-drive vehicles.  Nevertheless, Daniel was in no hurry and did not push it.  His Toyota was equipped with a full range of camping equipment.  He never stayed at motels or other formal lodgings if he could avoid them.  Not only were they few and far between in this country, but in most cases the food and comforts they offered were much below the standard that Daniel could provide in his own temporary camps.

This evening he would keep going until a little before sunset and then find some inviting stand of forest or pleasant stream at which to pull well off the road and break out the tucker box and Chivas bottle.

He doubted that they would get as far as Mana Pools, and certainly they would not reach the main metalled highway that ran from the Chirundu bridge on the Zambezi, south to Karoi and Harare.

Jock was pleasant company.  It was one of the reasons that Daniel had hired him.  They had worked together on and off over the past five years.

Jock was a freelance cameraman and Daniel called him up on contract whenever he had a new project signed up and financed.  They had covered huge tracts of Africa together, from the forbidding beaches of the Skeleton Coast in Namibia to the drought and famine-ravaged mountains and ambas of Ethiopia and the depths of the Sahara.  Although they had not succeeded in forging a deep or committed friendship, they had spent weeks together in the remote wilderness and there had seldom been any friction between them.

They chatted amicably as Daniel took the heavily laden truck down the twisting escarpment road.  Whenever a bird or animal or unusual tree caught their attention Daniel parked the truck and made notes and observations while Jock filmed.