Unlike the slime area, the skeletons area seemed endless. For about 6 months, I had knocked down thousands of skeletons and leveled up by leaps and bounds. 

Initially, I easily leveled up by killing handful of skeletons but as I reached Level 17, I had to kill thousands of skeletons to rise a level. Luckily, my undead body could continuously worked for 6 months without sleep and food.

As I entered another chamber, 5 skeletons of different kind approached me with hostility. I noticed skeletons, unlike slimes were not homogeneous, each had different size. Skeletons used variety of weapons and many even wore armours. I had been using a massive club that I got from a large skeleton. The large blunt weapon was ideal for killing skeletons as thrusting and slashing weapons didn't damage them but this large weapon crushed their head easily.

Killing each skeleton gave me different amount of experience points. 

Ops, as I was thinking, 3 of the skeletons attacked me. I evaded 2 and crushed one with a club. I got behind the another two and they were late to react. I crushed the back of their head. 

"You killed 3 skeletons. You gained 130 experience points." The tutorial appeared.

The remaining 2 walked towards me but as my "Leg Speed" was upgraded accordingly, I reached them first and crushed the two heads.

"You killed 2 skeletons. You gained 90 experience points."

I decided to raise 1 point for "Hand Strength" and 1 point for "Hand Speed".

I checked my Status.

Name: ????

Age: 14     (0 Year : 181 days : 16 minutes : 41 seconds)

Race: Skeleton

Level: 20

Experience: 2 / 10,000

Money: 1,810 gold coins

Attributes:

Stamina   20

Durability  20 

Natural healing  5 

Hand strength  10

Leg Strength  6

Body strength  1

Hand speed  12

Leg speed  8

Reflexes  5

Instinct  11 

Magic Point  1

Magic Power  1

Tutorial appeared again. Usually it appeared once if I leveled up.

"You reached Level 20. You could now evolve into difference race."

Oh, shit. Is this what I have been waiting for the damn 6 months? Finally, I become human !!