Infinite Undiscovery

This achievement takes place when you are attacking Castle Prevant after saving Aya. I also suggest doing this cheevo on Easy or Normal difficulty for best results.

Pre-Achievement Note: Make sure you Save before you enter Castle Prevant so incase you need to level your characters.

Also make sure you have some sunstones (can be bought at Nolaan or from Genma at the castle) and 1 piece of Iron Metal (dropped by Order Servants)and 1 piece of Marble (dropped by gargogyles) or both can be bought easily from Nolaan or Genma if you have downloaded the A Voucher.

Now once you pass the gate battle and enter the castle an internal timer will start, you will have 4 minute intervals to save each of the 4 guards (4 min to save the first, 8 min to save the second, etc.) if you do not save them within the time limit the guard will die and you will not be able to get the achievement.

Now for the process: As you enter the castle take your first right, then follow the hallway around to the left, then take another left and you will find a room with a treasure chest, open the treasure chest to get a "cell key". Now head back towards the entrance and just keep going down the opposite hallway and open the first closed door on your right, thats for Guard #1.

Now exit the room and keep following the same hallway(passing another locked door)around and you will take another right and at the end will be an enemy soldier. Kill the soldier and he will drop another "cell key", pick it up and open the locked door you just passed, thats Guard #2.

Now it gets a little tricky: Go back towards where you found the first "cell key", but instead pass where you turned left to find the room and take your next left down another hallway, follow this hallway all the way and eventually you will come to a dark corridor, here use a Sunstone so you can see and WATCH FOR THE TRAPS, as they do deadly damage. If you connect with Aya you can Surprise Attack the Gargoyles and disable their traps. Behind the 2nd Gargoyle you will find a rat, connect with Rico and talk to the rat and he will give you a "cell key". Now run ALL the way back to where the cells you opened were, pass the 2 you opened and follow the hallway until you get to the next locked door on your right, open it and that is Guard #3.

Now go ALL the way back to where you were, go through the dark corridor, follow the hallways (you will pass through another dark corridor) and eventually get to a room where there will be a cut scene and Edward will join your party. After the cut scene immediately save on a new slot, then have Edward create the 4th Cell Key using the Iron Metal and Marble. Now head all the way back to the cells, pass the door you opened prior and the last locked door will be just passed it, thats Guard #4.

As soon as you enter the room you will get the achievement as well as a Situation Bonus.

Alternatively, instead of going back to the cells after getting cell key #3, continue forward and get #4, then head back to the cells, but when I tried this numerous times, I was to late, but when I went back after #3 is when I got the achievement on the first try.

If you still need some help check out this link:

For a map with the routes.

Thanks to dropK1CK ninJA for the link

Crimson Drifter's preparation tips are good to know, but how I pulled this off easy was this: set the difficulty to low, MAKE SURE YOU GET: sunstones and *2* marble and *2* iron metal from Genma (you can get access to these materials at merchants through a free DLC). Reference the map in Crimson Drifter's post:


Make sure to open the cells starting from Cell 1 in a clockwise fashion. Make sure you're set on easy and just bum rush it. Sheathe your sword so you run faster and then leave your party behind. Grab the first key from the treasure chest around to the east and run back and open the first cell. Then, keep going to the west and around the corner and kill the guard at the end of the hall for the second cell key. Go back and unlock the second cell.

Now, bum rush past everything all the way to the top room with Edward. Do not bother with the mouse. Dont's stop to fight guards, leave your party behind to die. Make sure you're set on easy and refer to the map above for where the gargoyle traps are and skirt around them, although they are survivable on easy. Use a sunstone when about to enter the darkness and when you know a trap is coming up just walk slowly and skirt around it. Your party will not be smart enough to do so so leave them behind as I said.

Once you get to the top room with edward have him make TWO keys instead of the 1 he'd make with the other methods. This is way faster than making a whole nother trip upstairs and back. This way you dont have to bother fighting any gargoyles and dragging rico up to talk to the mouse while keeping him alive to get the 3rd key, or fighting anything else with the exception of the guard with the second cell key from earlier.

After smithing the two cell keys with edward, bum rush your way all the way back down ignoring all enemies and hopefully dodging traps (if you eat one or two just chug a healing item). Once you get back to the cells you can open 3 and then 4 back to back without having to make a 4th trip upstairs or drag along the AI chars with bad pathing along with fighting to slow you down as with the other methods. I got it EASILY this way first try after trying the 4 trip method a ton of times and always failing.