He walked back up the slope and met Indavara.
‘Nothing,’ said the bodyguard. ‘Just an empty hut.’
Cassius pointed back at the mouth of the mine. ‘This looks rather more interesting. Must be six yards across, three high.’
‘More than enough for a big cart.’
‘Exactly what I was thinking.’
It took Simo a frustratingly long time to get the fire going. He blamed damp char-cloth but Cassius was cursing him by the time he finally wrapped an oiled goat-skin round one of the pick handles and set light to it.
‘You keep watch out here, Simo,’ Cassius said as the three of them stood in front of the shaft. ‘Indavara, you’re with me.’
The bodyguard didn’t answer. He was gazing wide-eyed into the gloom.
‘What’s the matter?’
‘I’ve never been in somewhere like this.’
‘Neither have I,’ replied Cassius as he took the torch from Simo. ‘And I don’t know what we’re going to find down there, so I need you with me. Draw your sword.’
‘What about the spirits?’
‘If you’re so worried about spirits, best utter a prayer to your precious Fortuna.’
Sighing, Indavara drew his blade.
‘Perhaps you’ll need your cape, sir,’ suggested Simo.
‘We shan’t be in there long enough for me to get cold.’
‘These mines can run for miles, sir. And how will you find your way?’
‘If the men we’re after used this place, they had no reason to venture far from the main tunnel. Get the horses out of sight and watch the road. If anyone approaches, call down to us right away.’
‘Yes, sir. Do be careful.’
Simo hurried away up the slope.
‘Have you said your prayer?’ Cassius asked.
Indavara shook his head.
Cassius was all set to ignore him and get going, but he wondered if a few words for Fortuna weren’t such a bad idea. Epona had looked after the horses after all; and he might face numerous dangers in the coming days and weeks. He’d never been much of a worshipper, but life had been easier before: safer, more predictable. Things were different now. It certainly couldn’t hurt.
‘Allow me.’ He clasped his hands, closed his eyes and began: ‘Great Fortuna, goddess most high, we two humble travellers ask you to watch over us as we set forth into this dark place. We ask you to remember our offerings and prayers and we pledge to show our love for you when next we can. This man worships only you, so sacred are you to him. Our occupation is a noble one; we are engaged in a task that might keep peace in this land. Please grant us your favour, great goddess. Please grant us your favour.’
Cassius opened his eyes. Indavara’s were still shut. Cassius tapped him on the shoulder.
‘You should repeat that last bit.’
Indavara did so.
After only a few steps into the mine they spied the cart-tracks. Cassius paced out the distance.
‘Eight and a half feet. This really might be it. Come on.’
The torch crackled as they strode into the darkness, and soon its glow caught the smoky wreaths of their cold breath. Cassius moved the light around, sometimes keeping it low so he could examine the ground, sometimes raising it high to check the roof.
He stopped and glanced back at the entrance. They were only a hundred feet inside but it already looked alarmingly small.
‘What is it?’ asked Indavara.
‘Nothing. I just thought there would be tunnels or turns by now. On we go.’
Cassius hunched over, eyes fixed on the left-hand wheel mark. Occasionally, he would stop to check the walls but he found only niches for long-removed lamps. Indavara stayed a couple of paces behind him.
The wheel mark suddenly veered to the right. Cassius veered with it.
‘Odd.’
Thoughts of why the track might suddenly change direction — and that he was perhaps walking too quickly — struck him just as his left foot slid down the lip of a vertical shaft.
‘Gods!’
His foot gave way and he fell. His right leg, however, buckled under him and he landed on his knee, left boot still dangling in the air. Indavara grabbed his belt and pulled him away.
The torch fell to the ground and sizzled on the damp soil. As the flames flickered, Cassius snatched it up. Indavara knelt beside him.
‘All right?’
‘Yes. Just. Thank you.’
Cassius held the torch over the lip of the shaft.
‘That was close. I thought the tunnels would go off to the side, not straight down.’
He stood up and walked carefully around the shaft. It was six feet wide and flush against the left wall. There were small handholds cut into the earth, and the remains of a rope.
‘Right. Slower this time.’
Fifty feet further in, the tunnel divided. The main path continued downward at an even steeper angle while a second, narrower shaft bent away to the right. Cassius now realised that he was in fact following two sets of wheel marks, and both led along the smaller tunnel.
‘They came in and out again,’ he whispered to himself.
With a last look at the entrance, they continued round the bend, Cassius’s gaze still trained on the ground. The lower and further they went, the softer and wetter the soil became, and the more obvious the wheel and foot marks; and as the tunnel widened out into a cavern, the ground became a muddy bog.
‘Stay still a moment,’ Cassius told Indavara, before twice traversing the twenty-foot width of the cavern. ‘They may have been covered by the footprints but I see no more wheel marks beyond this point. I think they stopped here.’
‘Look.’
Indavara pointed to the tunnel wall behind Cassius. There was a torch there, placed in an iron frame fixed to the wall. Cassius examined it.
‘Used fairly recently, I’d say.’
They found six more of the mounted torches, and were able to light four of them. Indavara sheathed his sword and took one. The light seemed to bounce around the cavern; they could see the space quite clearly. Further on, it narrowed to a tunnel once more but before this were two small caves, one on either side.
They checked the left side first. Inside was a big wooden table with one broken leg resting on a slab of rock. There were chairs, stools and a chest too; plus some iron-framed buckets and two barrels full of green, putrid water. Indavara pulled open the lid of the chest. The rotten wood disintegrated and spilled the chest’s contents — thick coils of hemp rope. Cassius knelt by the chairs, examining the area beneath the table.
‘They sat here. Counting their treasure perhaps.’
‘So that’s what was in the barrels,’ said Indavara.
‘Among other things, yes. Doesn’t look like they left anything behind.’
‘They left this.’
Indavara pushed his sword tip into the muddy ground and levered out a brass coin. Cassius picked it up and scraped off the mud on the edge of the table. Before he had finished, Indavara found two more. They were all the same design; identical to the one from the Palmyran temple.
‘Careless,’ said Cassius. ‘Very careless.’
‘Perhaps they thought they had nothing to worry about; that no one could follow them this far.’
‘Possibly. But all we’ve done will be for naught if we find nothing more here. Those cart-tracks vanish outside. We must keep looking.’
They found nothing else in the first cave. The second contained more buckets, a pile of rotting leather hides and a voluminous barrel of quicklime. They took half the chamber each, and examined the ground, the walls, even the roof; but there was nothing more to help them. The goat-skin on Cassius’s torch had almost burned through so he swapped it with another from the cavern.
‘This way.’
Cassius had to bow his head as they pressed on down the narrowing tunnel. With the additional light of the two bright torches, they were at least able to see further and walk quicker; and before long the light from the cavern was no more than a dim glow behind them. The walls were more rock than soil now; and the temperature had dropped dramatically.