Inbisible Box

I have the following note:

"So that strange invisible box in the marshes? Yeah, I say if you're the most hardcore adventurer whos fears the challenge, not even death, it has something awesome inside. (...)"

I've tried several ways to open that box of "right" way, I tried to do 50 missions and then open, I tried not to take any other item, kill 2000 + monsters and opening the box, I tried to get the 10 barrels and then open the secret box ...
Everything you always find in the box is a small coin 100.

Anyone know what's inside the "Invisible Box"? It is worth spending so much time trying to open it?

(google translator)

Inside the box's the best bow in the game.

hmm .... thank you
I'll keep trying then

I suggest taking the note as litteral as possible... Also I think the crit on that bow is still broken or doesn't proc with other crit effects *such as the archers Marksmanship* Still, its a strong wep for archer

does this invisible box comes back again sometime after you destroyed it? or it only spawns once per game?

i spawn once per game ... try to levelling hero up to 99, get this bow & your archer will be superb

how exactly do you get the bow?

and what are its stats?

play Very Hard & Hardcore mode

to equip that bow, make sure 1 or more char have max (99) level

every job I have is already level 99 and I always play very hard still no drop even when i use thief.

you need to play on very hard + HARDCORE death rules aka, you if you die thats it.

I got it thanks for the tip

Hello! Please, help me to find it. I can't find this invisible box... mb i should to do something for spawn it? Or i should get some item for it? Please give me some advice (or screenshot with place of this box)
P.S. Looking the box on very hard+hardcore

the invisible box is in the dark dragon marsh, also you can see the selection ring if you click on it, DDM is not so big it should be easy to spot if you are looking for a place inside it with a box (size of magical treasure chest boxes)

Hold down the ALT key and you'll be able to see its disembodied health bar.

Thank you. This box will appear at start? or i should to do something for spawn it?

Thank you. Got it.

U can get the items in the box when u play at Difficulty:Very Hard Death:Hardcore(No Revive) U can get that easily when.....wait SPOILER: First: Play at Difficulty:Very Easy Death:Normal And Ultimate Master All D Jobs And Buy All D Strongest Items (No Materias Included) Then save it at a file (If UR Playing at V 9.4.1) Then create another game and select the needed difficulty above and There U can defeat all D BOSS but when u defeat them all U need to find D Strongest Boss Ever Made In The Game (Bottom Right Is Not The Strongest Bosses) U can find it if u can explore all d map and If U finished the friendly kid that is blue there u can fight the STRONGEST of thats all.........?