This is an account of the events that occurred here on the date 1 May, 1241 so that anyone who may find this will know the truth of what happened.

The Mongols have conquered. They sacked the abbey and discovered our bunker. I was the last remaining person alive, me and the two Templars.

The Mongols murdered them, hanging one from the roof and leaving him to choke. I watch him struggle, helpless to provide aid, until his life faded, and his body stopped struggling. The other a stab through the stomach. Both died slow agonising deaths and I did not know their names. I could do nothing but pray for them.

I am now the only one who remains, why they let me live I do not know. Maybe this is their own way of torturing me before I die.

They attacked like a wave, coming down the stairs and through the tunnels like the devil's army. It was senseless and they seemed to delight in murdering as they charged. In the upper caverns they threw my brothers off the sides, their screams mingled with the invader's laughter echoing in the caverns and in my mind long after their bodies lay broken in the Vistula.

They laughed as they tied heavy rocks to my brother's and the Templar Knights and pushed them into the river still breathing. I could see them struggling but, like always, I was unable to help. It was too much, I just hope God was able to comfort them in His embrace.

Sometimes they stand and taunt me at the cell bars, but I pray. For their souls and mine, for they are possessed by the devil.

This all happened because of Brother Dominik Martinus, who betrayed his oaths to God. He is responsible for this massacre.

When the attack came, we were overrun and this was our sanctuary, our last defensible position. The templars were able to repel any attack and held out for weeks. Then, suddenly, the Mongols appeared right in this cavern as if from smoke. That was the end, they opened the doors and the templars were overrun from both directions. I was shuffled in the chaos from the upper caverns to this cell. As the chaos ensued, Brother Martinus appeared and locked me in this cell.

There was a look of great sorrow on his face as I asked him what he was doing. He said the only way to secure himself passage out of Poland was to strike a deal with the invaders. In exchange for letting them in through the other entrance, our safe passage to retreat, they would provide him a horse to flee Poland.

I questioned him on the other entrance, for I knew of none, but he ignored me and turned to leave and it was then I noticed he was carrying a hefty bag, I asked him what was in it but all he said 'what rightfully belonged to him'.

I knew it was a lie since he owned very little. Certainly not enough to cause so much weight.

He apologised again and left after that.

During the early stages of the Mongol siege, Martinus told me of his desire to flee Poland. He knew the reputation of the Mongol horde and he didn't want to be around when they succeeded.

I asked him where would he go?

But he did not say. I hope he knows that he may outrun the Mongols, but he will not outrun his conscious, nor can he outrun God and I can go to my death in peace knowing his time will come and he will be denied entrance to Heaven by St Peter.

My time is coming to an end, I have not eaten or drank in days. The sound of the rushing water is added torture to an already torturous existence. I write these final notes in the hopes that in the future someone will come and the truth will be known and that Dominik Martinus is captured.

God be with you.

Jonathan Appleton

May, 1241

Nate put the page down, "Jesus" he murmured. He looked at the skeleton that lay at his feet, "Bad way to go, pal."

There was a faint noise, like something heavy falling and Nate wondered if Sully had gotten through or got some help. He didn't think much of it as he pulled out a second page, this one in a different hand but also in English.

It read:

My name is Captain Charles Clerke, of HMS Discovery who, under orders from HRM King George III, underwent a secret mission lead by Captain James Cook to recover the Crown Jewels, thought to be lost in 1216 by King John but later revealed that he conspired with Roger of Wendover to steal the jewels and flee the country.

We learned of this conspiracy when our Lord received a letter from Berne Abbey in the Dutch Republic. Acting on this letter, Captain Cook was ordered to investigate and recover the Crown Jewels on a matter most secret and with utmost urgency.

In accordance with these orders, Captain Cook gathered a team of his most trusted men, a number no more than 15 plus the crew of the HMS Discovery. He then organised with a man named Kamehameha of the Sandwich Islands, where we were currently exploring, to engage in a fake battle where the Captain would 'die'. Once this was achieved, we took the HMS Discovery carrying his 'dead body' and set sail for the Dutch Republic.

The trek took two months and we alighted in Amsterdam before making haste for Berne Abbey.

Captain Cook worked tirelessly, like a man possessing a youthful vigour, and pushed the horses far harder than we should have.

In hindsight this should have been my first clue as to the mental condition of the Captain.

We arrived at Berne Abbey in quick time and after speaking with Brother Smit we were given all they had discovered in Roger of Wendover's room.

Captain Cook took the diary and we headed for the Church of St Peter and Paul where we discovered the key, the secret to the key and this bunker.

I will not write of what we found or where we went next. Suffice it to say this mission took hold of Captain James Cook, he became a man possessed, as if by the devil. He stopped eating, slept little and pushed himself to the brink to find the Crown Jewels.

We journeyed a great distance, crossing vast plains, deep lakes, high mountains, we came across red hedgehogs, wild horses and great falcons and no matter if it was rain, hail or shine he pushed us hard. Men were sick and injured, left behind, but he walked on as if impervious to the conditions.

I do not know if he found the Jewels, but I returned here after we went our separate ways, his anger and obsession was too much to handle. I don't even know if he noticed that most of his crew had left him at that point.

By the time I left only a handful of men remained with him, the rest pushed away by illness or his demeanour and actions.

The Jewels took a hold of him, of that I am certain. I'm not sure how, but his personality changed. What was once a tough but fair commander and friend was now a strict master who was irrational and quick to temper. He had a single-minded focus. He was a stranger to me in those last days.

The reason why I will not speak of where the hunt for the Crown Jewels led us is that I see what they do to people and I wish them to remain lost for they are possessed by the devil. Once he realised that Dominik Martinus had betrayed his people and left with a bag containing the Crown Jewels, it was as if Captain James Cook died and a greedy, irrational doppelganger had risen in his place.

When we went our separate ways, Cook was confident he knew where to find the Jewels but whether he did I do not know. I have no faith that if he does find them that he will return them to the King, they have surfaced a greed within him that I did not know existed.

It is my sincere hope that the Jewels remain lost forever in time, however I know that is not likely and if the Jewels are still undiscovered, I will not stop anyone from seeking them out for they are part of my country's history and I am in two minds as to whether they should be discovered or not. Ultimately it is not my decision to make on behalf of others and I cannot stop anyone from trying, but I will not tell you what I know or where to go next. I left the key at Berne Abbey, and this diary with the body of Jonathan Appleton and that was enough for me to give you a push in the right direction.

If you fail to heed my advice, well...you have already made it this far, you can follow in my friend's footsteps the rest of the way.

Charles Clerke

December, 1780

As he was folding the letter Nate noticed something in the bottom corner of the page, it looked like the letter 'A' sitting on an upturned crescent with a bunch of knobs sticking out of it. It was a sextant, used for navigation by measuring the distance between the stars and the horizon. The letter 'J' was on the left of the symbol and 'C' on the right. Nate wondered why it was added to the corner of the letter, maybe it was a symbol Cook's crew used in their letters.

Nate replaced the letter in the leather folio. Both letters had given him something to think about. The Jewels, at some point in 1241, were here and then removed by Dominik Martinus in exchange for letting the Mongols in to capture the church and massacre the monks and templar knights.

Then, around 1780, Captain Cook and his crew arrive here, discover the secret entrance to the Abbey and follow Martinus wherever he went after leaving the abbey.

He picked up the folio and slung the strap over his shoulder, and just as he was about to leave the cell, he heard a low groaning sound, like the door was being opened.

He wondered if Sully crossed the bridge and made his way down.

"Sully?" he called out, but no response.

He moved down the walkway lined with the makeshift buildings and turned a corner to the main area where the doors were and was welcomed by a gun pointed straight at his head.

"Whoa" Nate said holding his hands up.