Some people can't translate the inscription in King Desius' tomb for some reason or another - small screen, young players, etc. - so I figured I'd post up the full translation for anyone who's hopelessly stuck. (Context and pattern recognising counts for a lot here, by the way: most of my translating was done by recognising what was around a word and filling in the blanks.) Mods, if this thread isn't allowed feel free to get rid of it; I only made it because I noticed people in another thread saying they simply couldn't translate it themselves.

Jinxie's Starting Point:
T_IS | IS | T__ | T_MB | __ | KI_G | __SI_S | I, | __L__ | __ | S_L_STI_. | I_
_____ | T_ | S__L | _IS | S_I_IT | I_ | _T____L | SL_MB__, | __ | C__ST__CT__
T_IS | T_MB | _IT_ | ____ | M_GIC_L | S__LS. | __C_ | S__L | L_CKS | _ | _I_C_
__ | _IS | S_I_IT | I_ | ___T___ | _L___ | __ | __IST__C_. | I_ | _LL | ____
S__LS | ___ | B__K__, | KI_G | __SI_S | _ILL | B_ | ____ | T_ | __T___ | T_ | T_IS
_L___ | M___ | _______L | T___ | ____ | B_____. | _IT_ | __C_ | S__L | I_
_L_C_, | KI_G | __SI_S | _ILL | ____ | T__T | _I_C_ | __ | _IS | S_I_IT
___K____ | I_ | T_IS | _L___.

I_ | _____, | T__ | S__LS | ___ | T__ | S__L | __ | _L_C_IT_, | T__ | S__L | __ |
C____G_, | T__ | S__L | __ | C___I_G, | ___ | T__ | S__L | __ | ___C__TI__.
__L_ | T__S_ | T___ | T_ | __C_ | S__L | _ILL | ____ | T__ | _____ | T_
_CTI__T_ | T__M | ___ | __L_ | ____ | _LL | ____ | S__LS | ___ | _CTI__T__
_ILL | T___ | ILL_MI__T_.

Full Translation:
THIS IS THE TOMB OF KING DESIUS I, RULER OF SYLESTIA. IN
ORDER TO SEAL HIS SPIRIT IN ETERNAL SLUMBER, WE CONSTRUCTED
THIS TOMB WITH FOUR MAGICAL SEALS. EACH SEAL LOCKS A PIECE
OF HIS SPIRIT IN ANOTHER PLANE OF EXISTENCE. IF ALL FOUR
SEALS ARE BROKEN, KING DESIUS WILL BE FREE TO RETURN TO THIS
PLANE MORE POWERFUL THAN EVER BEFORE. WITH EACH SEAL IN
PLACE, KING DESIUS WILL HAVE THAT PIECE OF HIS SPIRIT
WEAKENED IN THIS PLANE.

IN ORDER, THE SEALS ARE THE SEAL OF ALACRITY, THE SEAL OF
COURAGE, THE SEAL OF CUNNING, AND THE SEAL OF PERCEPTION.
ONLY THOSE TRUE TO EACH SEAL WILL HAVE THE POWER TO
ACTIVATE THEM AND ONLY WHEN ALL FOUR SEALS ARE ACTIVATED
WILL THEY ILLUMINATE.

*spoiler*
So we should not try to solve the puzzle! unless we want a challenge

I haven't personally completed this quest yet - I've yet to sort out a pet for each seal - but from what I've gathered on the forums, you actually come across the seals in their broken state and need to re-activate them in order to weaken the boss and make him killable.

XD I didn't manage to translate it, so I guessed wrong every time, but I still killed him easily enough.

Good job on translating it! o: Way neater than my translation pictures...xD

At any rate, sometimes, people still have a hard time with the tomb, translated or not (ie how to activate them, are they really activated, not sure if they're activated and probably runs the tomb over and over like a dead horse), so I'd think this would be a great help. o:

Well, if you don't activate the seals, he's still killable... just VERY tough.

I can read some of it each test starts with "This is the seal of cunning. Only those true to this seal can activate it....." I think this is the translation. The name of the seal changes. There doesn't seem to be much of a hint on what to do.

I think the order is
Agility, Strength, ??? ???

But I'm not sure about perception... I'm going to test this once and see if I get it, though I am fairly sure there is likely a minimum bonus to the stat that you need.

Agility 200+ (could be less don't know)
Strength 200+ (could be less)

Please note that this is just my guess, and I'm wondering if this works for others too.
I thought that Cunning was intellect, but now I think perception might.

Oh well I've put way too much effort into this ^_^

Thanks! I only got to the "Here lies King Whatever" part, then I got bored. Or confused. Maybe a bit of both. Well, I got through the seals just fine, and defeated him just fine as well.

I just choose randomly for the seals...

Well... Honestly, I was disappointed by this puzzle.
Went through the effort of manually translating it, only to find out that it didn't help at all.

Alacrity must be agility. But since I don't have any agile pets, I tried choosing Jinxie.
Cunning is likely intelligence, so I tried my 492 INT caster pet for that.
No idea which stat perception is supposed to be. So I tried choosing both myself and Jinxie for that.
Courage... Strength, maybe? But I'd kinda expect anyone to work for that. Considering that cowards wouldn't be exploring an undead-filled tomb in the first place.

I tried backtracking a couple of times, but couldn't find any combo that actually worked. So in the end it was a total waste of time, and I should've just chosen random answers.

I translated the whole thing myself as well, I couldn't be bothered to look for a thread and I was bored so I challenged myself. I looked up the meanings of each of the words, I'll put them here:

Alacrity: brisk and cheerful readiness.
Courage: the quality of mind or spirit that enables a person to face difficulty, danger, pain, etc., without fear.
Cunning: having or showing skill in achieving one's ends by deceit or evasion.
Perception: To become aware of something directly through any of the senses, especially sight or hearing.

According to this, courage definitely sounds like your character, at least to me.
Keep in mind alacrity might not neccessarily be agility; it could also be cheerfulness.

EDIT: Apparently the seal of alacrity is Jinxie. Courage is strength, Cunning is Dexterity I believe and Perception is intelligence... if I got this wrong let me know. The seals don't matter much for the battle though.