Russet snorted and paced skittishly as the lake lapped at his feet. I cursed him and had to use all my skills to get him moving again. I had my hands full since I was also leading the mule; the wretched creature had decided I was the only one of us that she'd co-operate with. I'm all for females sticking together, but I felt this was a bit much. I managed to get her moving in a sulky trot, but when I looked forward, the others were quite a way ahead. Tendrils of fog were creeping into the gap and I shivered suddenly.

'Wait up.' I used my heels on Russet and he skipped forward but the fog was growing denser by the second. Shiv and the others were indistinct shapes in a few breaths as clammy whiteness coiled round us.

'Wait for me!' I bellowed but the dead air smothered my voice like a pillow.

I looked down to check for the water's edge but Russet's hooves were already lost in the rising mist. He stopped and snorted nervously, ears pricking forward then laying flat back to his head in turn. I looked at the mule; all I could see now was her head but she was doing the same with her large furry ears, eyes rolling and showing white as something spooked her.

I sat and forced myself to breathe calmly and strained my own ears to try and detect whatever the animals were reacting to. Horrid whispering floated from the direction of the lake but I couldn't make it out. I shook in the chill breeze and kicked Russet hard but he wouldn't move.

Sudden chattering behind us startled the mule into a leap forward that sent her into Russet's rump. He whipped his head round, teeth bared, and snapped at her. She snapped, he reared and I slid gracelessly off his rear end.

'Stop, you bastard horse!' I grabbed helplessly for the trailing reins but the cursed creature vanished into the fog, which was now as dense as rotten milk. I scrambled to my feet and looked wildly round. At least I still had hold of the mule. If there was something out there hoping for a meal, it could have her first. Would there be bears around here? Wolves? Something worse?

'Come on.' I held her by the bridle and leaned into her shaggy shoulder as I took a few cautious steps. I felt water lap round my feet and swore. Back-tracking, I tried what I thought was another way but a few short paces had me paddling again.

As I turned the mule round I caught a glimpse of something in the fog, a dark indistinct shape about man high.

'Shiv? Ryshad? Is that you?' I walked forward slowly but all I could see was fog. There was a scrape on the stones behind me and I whirled round, pressing my back into the reassuring solidity of the mule. I screamed as something or someone tapped me on the shoulder but when I looked wildly round, there was nothing to be seen.

All those fears that you keep locked away in the back of your head started hammering on the doors of my mind. The terror of walking through the house in the dark as a child, the horrors that pursue you back to your bed and the safety of your blankets, the panic of being separated from your parents in a busy street. More adult dreads came crawling up to join them and add their weight; I felt the shock of that near-rape again, the whimpering nausea when I had faced a flogging for theft, the peril and uncertainty when I had been separated from Sorgrad in a riot in Relshaz. I began to shake as the crowding fears made thinking and even walking forward more and more difficult. The mule was shaking now, sweating like a beast facing a predator, head swaying from side to side as shadows in the fog chased around us and evil sounds whispered on every side. I heard echoes of my grandmother scorning my Forest blood, the slap of leather against flesh, the deranged laughter of the would-be rapist. I quailed before the mounting onslaught, sinking to my knees, but still clinging to the mule's reins as if I were drowning.

I don't know how long I crouched there, paralysed by nameless dread in the fog. Eventually a faint voice of reason began to cut through the clamouring terrors in my head. When the fear became too much to bear with my eyes closed, I realised I could see a difference in the fog over to one side. Where it had previously all been white, dead as a pauper's shroud, I could now see faint colour. An almost imperceptible shading of blue was lighting up the heavy wet air.

Shiv, it had to be. I got to my feet and forced my trembling legs towards the colour, dragging the reluctant mule behind me. As I moved, I managed to get a grip on my mind again and hurried the pace. I cannot describe my relief when I saw Shiv standing in a shimmering blue sphere of clear air. The boundaries of his spell were expanding and, as the brilliant blue light swept over me, I felt the fears wash away; it was almost a physical release.

'What's going on?' I hurried to his side and looked round, still apprehensive.

He shook his head and concentrated on his spell. A change in the light made me look up and I saw the fog melting above us. Soon we could see the lake shore and the surrounding valley walls. I drew in deep breaths of clean air until the trembling finally stopped.

'Azazir!' Shiv's roar startled the mule dreadfully but I managed to hold her. 'Your spells are a mighty defence against the untutored. I honour your skills but let us stop this trial! We have urgent business with you; we would not disturb you if it were not a matter of life and death!'

There was a crack like thunder on the plains and in an instant the fog vanished. I blinked away sudden tears as blue sky and sunlight hit my eyes and, for a breath, the valley was bathed in the clear light of a crisp autumn day. It was over so fast I almost doubted my senses; the clouds returned and the rain poured down on us once more, heavier than ever.

'Shiv!' Aiten and Ryshad stumbled towards us through the sheets of rain, feet sliding in the treacherous mud. They had lost their horses too, and each looked white and strained. Vomit stained Aiten's cloak; I didn't want to think what could have terrified him to that extreme. Ryshad's face was set and pale, his naked sword dull and grey as the clouds above us.

'It was a spell.' Shiv held out his arms and we stood in a circle, clasping each other's hands and drawing strength from each other, breath hammering in our chests as we cleared the echoes of the dread from our minds.

Ryshad broke the silence. 'What now, Shiv?'

'We go on.' His tone allowed for no argument and he led the way further towards the head of the lake. We followed, the three of us gathered close to the reassuring bulk of the mule. I realised the rest of us had drawn our swords without stopping to discuss the matter.

The murmur of rushing waters grew stronger and, now the mist had cleared, we saw a waterfall plunging over a cliff ahead of us. Vapour floated over the waters like steam, foam roiling under the onslaught of the cataract.

'Look there.' Aiten pointed over to the base of the cliff. What I had taken for a heap of rocks proved strangely regular on closer examination and, as we drew nearer, I saw crude windows and the dark shadow of a wooden door. It was definitely a dwelling of some sort.

'Come on.' Ryshad moved out ahead of Shiv and Aiten followed him.

'Careful, we need to be patient,' Shiv called after them.

I'm not quite sure what Aiten said but I think it was something along the lines of 'Patience, my arse.' In any case, he walked swiftly up to the door and kicked it in with practised violence. He didn't get the impressive splintering crash he'd wanted, more of a soggy creak; having to pull his foot free of the rotting timbers spoiled the effect further.

Shiv muttered something uncomplimentary under his breath and hurried after them. I took my time tethering the mule and followed once it was clear no maddened wizard was going to turn them all into frogs. Once inside, it was obvious that this had once been someone's home but its former occupant was long gone. Crude wooden furniture stood covered in fungus, whatever materials had softened the chairs had long since vanished to line mouse nests, leaving only a few chewed fragments. Ryshad and Aiten were opening the cupboards and a chest but found nothing beyond rank leavings sodden into unidentifiable pulp. Moisture streamed down the walls and the air smelled dank and unwholesome.