Vaccine Quest (Narnia)

• To start the vaccine Quest, Go to Adon near the Tarpit Fountain Southwest of the Narnia Depot.

• Ask him for a mission, Yes, Help.

• Head north-west into the scientist's house and talk to all the NPCs there using "Hi, Mission, yes" prompts.

• Eventually Archimedes Will tell you to Go find Tesla. He will direct you from there.

• Go to Tesla, And ask him for a mission ;

Tesla: I am sorry but I just cant… How about this? 
Can you help us retrieve a potion that one of our scientists had with him when he was exploring the cave under Praxans shop? 
If you do this for us I will take the risk with you!

• Head to the Praxan's Mana Shop, go into the east room, down the hole, to the end of the maze and search for the dead body.

• Open the body when you find it, to get a scientists concoction.

• Go back to Tesla deliver the potion to him.

• Ask Tesla for another mission, and go to Chadwick, after which He will send you to Judar.

• Next ask Judar for a mission before he sends you to Haytham.

• After that ask Haytham for a mission and he will send you to Judar.

• Ask Judar for a mission. He will ask you for 250K in cash (you need to have it in your backpack)

• After that, go to Chadwick, and ask him for a mission He will send you to Tesla.

• Ask Tesla for a mission He will ask you to collect the following.

Please bring me 
- a brain from one of Praxons Hellfire Demons, 
- 50 of their hearts, 
- 50 of their dusts,
- 500 demonic essences. 
It is important that you give them to me in this order. 
As soon as you get them to us, we will be able to start making the potion. 
Please hurry!

(note he says 500 demonic essence, but he only takes 150)

• After you collected them, go back to Tesla and ask him for a mission.

• He will give you a potion to use.

• After that you can head to the Vaccine area!