Marlowe waved a hand as if it was nothing, but Nathaniel could see it was important to him. As Marlowe put his head back to sniff the air, Nathaniel realised he could smell a rich perfume, slightly sickly, drifting across the gardens.
'Come,' Marlowe whispered. He broke into a light-footed run until he reached the passageway that cut through the long range of buildings into the courtyard in front of the banqueting house. The flags were lit by the moon. All was still. From the shadow of the passageway, Marlowe studied the courtyard intently, taking in the chapel in the far corner and the haphazard collection of buildings to his right where an archway led through to the palace's private wharf on the river.
'It is empty,' Nathaniel began until Marlowe silenced him with an insistent wave of his hand.
Ahead was the Lantern Tower where the Silver Skull's Shield had been stored, and from which all but a chosen few were denied access. At the top of the tower, a green light pulsed, so faint it would have been easy to miss, but now that he had seen it, it was impossible for Nathaniel to take his eyes off it.
He had no idea what could cause such an odd hue, but it had the feel of a beacon, calling, or warning, he was not quite sure.
Marlowe turned to him and hissed, 'Something is amiss-exactly what I do not know-but I feel it in my gut. There is danger nearby.'
Nathaniel let his gaze wander over the empty square, and realised he too could feel whatever was troubling Marlowe.
A surprising flash of sympathy crossed Marlowe's face. 'Nat, it would be good if you stayed away from here-'
'No!' Nathaniel interjected. 'You would send me away now when I may actually prove I have some use in this world beyond fetching and carrying for my master?'
'There are things that you should not see, or know exist. Once in your head, they can never be put out, and this life goes from being a joy to a burden that you would be rid of soon. That is the nature of our business.' He searched Nathaniel's face and grew sad. 'I can see you will not be deterred. You are a brave man, Nat. But take my advice: whatever you see, put it out of your head the moment your eyes fall upon it. Ask no questions, neither of yourself, nor of me. Simply accept, and move on.' Marlowe delivered his speech even though it was clear he didn't believe it was possible. 'Do you understand?'
Nathaniel nodded, not understanding at all.
'Good. Then no more talk.' He drew his knife and watched.
After a moment, a solitary figure wandered into the centre of the courtyard and looked around with an air of confusion. Nathaniel was shocked to see it was Grace.
Marlowe made to silence him as he called her name quietly, but Nathaniel was so relieved to see her he darted out into the moonlit square and threw his arms around her. She was stiff and unyielding, and when he looked into her face, he saw a blankness that reminded him of a child's doll.
Quickly, he pulled her into the shadow of the row of buildings and said quietly, 'Grace? Are you well?'
She continued to stare blankly until a tremor crossed her face and she blinked once, twice, lazily. When she looked at him, her eyes had a dreamy, faraway look like someone deep in their cups, or on the edge of sleep.
'Nat,' she breathed. 'Oh, it is so good to see you. It has been ... how long has it been?' A puzzled furrow crossed her brow, quickly gone, and then her lazy smile returned. 'I have had the strangest dream, Nat. Of life aboard a magical ship, taking me to great adventures across a sparkling sea beneath the light of the moon. Of friends, whispering comfort in my ear, and joy. Oh, Nat! The kind of joy you never experience once you are grown.' Closing her eyes, she continued to smile at her memories.
'How did you get here, Grace? Where have you been?' he probed gently. He could see she was not herself, and wondered if she had taken one of the potions that the cutpurses sometimes used to dull the senses of their victims in the stews on Bankside.
Ignoring him, she wrapped her arms around her and swayed gently in the breeze.
In the entrance to the passageway, Marlowe beckoned furiously. Nathaniel tried to guide Grace towards him, but she resisted.
'No, Nat. I have work to do. For my friends.' Her voice had the singsong lilt of some melody only she could hear. 'I led them to the guards so they could come in ...' Her brow furrowed again, as though at an unpleasant memory, but nothing dark would stay with her. 'And now I must show them through the maze of the palace. They need me, Nat. I cannot deny my friends.'
'That is not a good idea, Grace,' he began, but he could see she was not listening to him. Gradually, she pulled away and drifted across the courtyard, his presence already forgotten.
Nathaniel ran back to Marlowe and said, 'She has helped her captors to enter the palace.'
'We must alert the guards, then. To the gatehouse.'
As they made to move, Marlowe suddenly grabbed Nathaniel and dragged him back into the passageway. Pressed against the wall, they saw grey shadows shimmer from the archway that led to the gate, following in Grace's wake towards the range of buildings on the other side of the courtyard.
Blinking to clear his eyes, Nathaniel wasn't sure if he was seeing moonshadows, so insubstantial did they appear. His attention was diverted by a cloaked and hooded figure walking slowly, head and shoulders bowed as if consumed with despair. More shadows followed, slightly more substantial this time; Nathaniel felt his eyes were clearing, although he could not explain the strange effect.
Once the courtyard was empty again, Marlowe motioned for them to leave the passageway. They ran along the wall around the edge of the courtyard, hesitating every now and then in case more of the intruders appeared. As they edged through the archway to the gatehouse that lay next to the river entrance, they were overwhelmed by a smell of rot.
The gates hung wide revealing the path that led to the warehouses along the river and the wharf. Two guards lay on the cobbles in the entrance, the moon illuminating skin that was blackened and suppurating. Nathaniel retched at the vile stink that rolled off the bodies and chewed on the back of his hand to control his gag reflex. As he edged closer, he saw large boils had risen up around the guards' necks and a thick white foam covered their lips.
'Plague!' he gasped, throwing himself back against the wall of the arch. 'But ... but the guards were well earlier. And plague does not strike one dead so quickly!'
Marlowe led him away several paces and whispered, 'Steady yourself, Nat. This plague is not natural. It comes from a weapon the Enemy has under their control-'
'The Spanish have a weapon that can bring disease?' Nathaniel gushed anxiously.
When Marlowe didn't reply, Nathaniel knew his worst fears were confirmed: there was another enemy, beyond the Spanish, and he knew instinctively what it was. Marlowe struggled to find words to continue the conversation and so Nathaniel interjected, 'What kind of weapon does this thing, Kit? I have not heard the like of this anywhere.'
'I told you-no questions. We can talk of these things later. Right now we must raise the alarm.' Nathaniel followed him into the gatehouse, but they'd barely gone three steps over the threshold when the foul smell told them all they needed to know. 'Damn them!' Marlowe snapped.
'They are slaying every man they encounter. Is there no protection from this weapon?'
'Dee searches for some defence, but as yet has found none. If used gently, without the protection of the Shield, I am told it has a range-like an arquebus. Stay beyond that range and you will be unharmed.'
Nathaniel nodded his approval. 'Good. That we can do.' He hesitated as a thought struck him, and then said, 'The queen! If these guards are dead, the others may be taken by surprise. We must protect her!'
'We are also charged with protecting what is held in the Lantern Tower. That will be the Enemy's first port of call.'
They ran from the gatehouse back across the courtyard and into the range of buildings that led to the banqueting rooms. Through the windows, they could see the maze of buildings that surrounded the queen's residence, the Black Gallery and the Tryst Rooms on the far side, and in the foreground the row of stone houses next to the Lantern Tower. Nothing moved in the immediate vicinity.
But as they continued down the corridor, they heard the sound of a guard's challenge ahead. Slowing, they came to a corner and peered around cautiously. At the far end of the great hall, a guard levelled his sword at the hooded intruder, demanding to know his business.
