The Nen user eyed the snake and couldn't help but feel a deep sense of fear and awe towards  it. Although a Nen user was considered strong , there also existed magicial beasts that could make a Nen user feel like a little kid. This snake was one of those creatures.

' It's here..The Purple Death. A monster that was so dangerous that it was exterminated from the world, but here it stands. The diary didn't lie, in fact it may have somewhat underestimated this monster.'

"Hisss~

The monstrous snake hissed as it flicked it's forked tongue, smelling something. It looked a little confused at first as it wasn't yet that time of the year, but when it noticed a sweet smell it completely went mad and started thrashing around.

"Aaaaa....nonono...hel...

The wounded hostage's screamed and tried to leave, but the damage to their legs coupled with the blood loss made them powerless. Of course the snake noticed them.  It approached them and flicked it's tongue and a stronger smell hit him. 

"N...o...

One of the hostage's gave one last meaningless attempt to get away, but the snake didn't care as it immediately plunged down and ate the man whole. It was so bizarre to witness such a thing. A man was eaten by the snake like a man would eat a snack.  This completely summed up the exodus of humans from the Dark Continent to the Mobius Lake. The difference in power was so huge that even humans with their ingenuity were but food to them.

"Hisss...

After the snake ate the first man it seemed to develop a taste for human flash as it immediately gobbled up the three other hostages. In lees then 30 seconds  it was quiet again and the snake was about to head back in the cave to digest the meal it just had, but it stooped.

"Hey!"

 It turned around and saw another puny human had presented itself in front of him. Compared to the gigantic snake the man in front of it was so small and insignificant that it was funny. That was exactly what the man was thinking, but he stood tall in front of the monster.

'The Purple Death, a very dangerous hybrid snake. It's scales are as tough as hardened steel and not to mention it's deadly poison breath and poison resistance. You really are a monster that I wouldn't dare face in my dreams, but now...I think it's  time to pay up for the meal.' 

"Hissss~

The snake hissed as it rushed towards the Nen user like a lightning  bolt, but the Nen user wasn't  afraid. He just raised his right  hand which was holding some kind of  remote and pressed the only button on it.

*Click*

*BOOOOOM*

As soon as he pressed the button a loud explosion was heard and the snake imploded. Blood ,flesh and organs flew everywhere coating the man and he surroundings in another fresh layer of blood. It was hard to believe but the surroundings became even more bloody.

"Hahahah, boss that was awesome! It was more beautiful than I expected. You really are...

Impala came out laughing as he relished the grussome sight before him.  He headed for the head of the snake, but a cold gaze made him stop.

"Stop talking, get to work. We have to get to the vault room as soon as possible. There is no more time to waste."

"Yes, yes, but can I get my head first? You promised me."

"Well get it later. For now the vault is our priority. Get the men ready , and bring me something to clean myself with."

"Yes...

Impala nodded as he gave the other mercenaries some orders. They then picked up the crate, took the hostage's with them and entered the now open cave entrance. 

 As they walked slowly  through the cave entrance the Nen user couldn't help but remember about the diary. The contents of it were so helpful to him that without it he would have died before even landing on the island.

' From passing through the no flight territory, to killing The Purple Death I have nothing but admiration for that man, but also I would never have wished to go someone like him.'

As these thoughts passed through the Nen users mind he clearly remembered a passage on the book. It told how his treasure  was protected and the horrible things he did to keep it safe. 

 He captured numerous people and brought them to this island as the Nen user did and also fed them to the snake, making the snake like a guard dog of his. Everytime he entered the cave he would feed the snake humans and the snake would leave him alone.The number of people feed to the snake was more than 1200 if what was written on the diary was correct.

 The way he achieved this is by attracting the snake with the 'Skin Shedding' flower, the same flowers Tank had smuggled into the airship. The flower as stated on its name helped snakes shedd it's skin , especially gigantic snakes such as The Purple Death that if they didn't eat this flower when the time to shed came , they would die.