Guide to the Hidden Land:

There is 16F and then youll get to the kanagashan in the middle and then you will save your adventure. then you will go out and there will be 9F after that.(F means floor for all those who dont know)!
Then when you have gone past the 9F you will talk and walk through the old ruins and the 1st pic is of Mew flying the 2nd one is of kyogre & Groudon Fighting the 3rd pic is of dialga and palkia not fighting(big shocker) then youll go up stairs and then youll see a strange pattern on the ground and a hole in the middle of it then grovyle will say a few words and then he will say to your partner to put the relic fragment in the hole and then 6 sableye will jump out and then dusknoir will come out he will say to the sableye take them to the dimensional hole so they grab you,partner and grovyle then you will see the dimensional hole and then you will push the sableye of you they will go back and then you will have to vs. them including dusknoir (P.S dont think dusknoir is that hard I beat the whole game in one day)(P.S I also beat the whole lv 19 in one shot)
Then dusknoir says i..Ii.i refuse to lose and then he gets up and pushes you then dusknoir uses his special ability and then all your gang members use their normal attack and threw the special attack back at himself and he falls then chimchar gets talked to by grovyle and then chimchar goes to fit the relic fragment into the hole and then you and grovyle have a sad talk.