No.1 Blood donation room
Each time you play this game, there's a small chance to generate the blood donation room. I found it in the blue covered book at the second floor. if you have already searched those three books and still didn't find it, just restart the game!


No.2 Gear
You have to get the Medical Kit.
You can revive anytime by spending 50 artifacts when you carried this item.

Step 1
Now we come to the most easiest part, stay close to the blood donation fountain, press the F key then press the Enter. After you hit the Enter, press the F key immediately then hit the Enter. So the trick is "F --> Enter --> quick press F --> Enter --> quick press F --> Enter...", keep on pressing till the death. Every time you have pressed the F and Enter you got 15 artifacts and the character will gain a short time of invincibility, during this invincibility time you can press the F key at least 3 times, so each blob of blood you can gain at least 60 artifacts.

Step 2
When the character died, just press the Enter and repeat doing step 1 untill you got 9999 artifacts.


Bug?
I have encountered a bug when I did the blood donation, all the icons had disappered. After I quiting game and re-enter the game it came back to normal.

Special Thanks
Thanks to this friend's help, in the previous edition, while using the Tinning Kit and the Cod Liver Oil, you have to ate to got your health recovered. Obviously the Medical Kit is so much better than those two stuffs.

Please ignore my spelling and grammer mistakes, and if you have questions just write your comments below, I'll response as soon as possible.