The following is all the information about infiltrating the Veilstone City Team Galactic HQ in "Pokemon Brilliant Diamond & Shining Pearl".

This is part 16 of our official Pokemon Brilliant Diamond & Shining Pearl complete guide and walkthrough, which begins immediately after you defeat Candice at Snowpoint Gym and meet again with your opponent at Lake Acuity. Your next goal is to rescue the Guardian of the Lake from the Galaxy headquarters of the huge Veil City team.

Now that Jupiter has revealed that Mesprit, Uxie, and Azelf were captured in Veilstone City Team Galactic HQ, it is obvious that you need to fly there. Upon arrival, you should go to the main headquarters in the northeast corner of the city, but don't go in yet. Instead, talking to the grunt standing outside, he will panic, run away and drop the key. The problem is that this key doesn’t work inside—it actually works in the same warehouse you visited in part 9 of our walkthrough, where you retrieved Lucas or Dawn’s pictorials and named it as Fly Obtained HM.

After entering the warehouse, open the previously locked door and turn right down a flight of stairs. From here, walk all the way to the right side of the room, and then go up and down a set of stairs. Go up a flight of stairs and you will arrive at a room with galactic grunts and two warp panels. Beat the grunt and use the right panel to take you to the storage room, where you can get the scalded TM. Retrieve the same panel this time and use the left panel. This will bring you into a room with another panel in the lower right corner. You should obviously take into account the fact that it is the only one left. Before fighting the grunts in this room, take the panel in the upper left corner and go down the stairs. Fight with the people here, go up the stairs in the upper left corner, and you will reach a room where you can get the TM of Sludge Bomb and Galaxy Key.

Related: Pokemon Brilliant Diamond & Shining Pearl Tips and Tricks Guide

Open the door here and you will return to the beginning of the building. Go to the right again and repeat all the same steps as before, until I reach the point where I said to ignore the grunt in order to use the twisted panel in the upper left corner after going up a flight of stairs. Fight the grunts and take the stairs on the right. From here, run a lap on the floor and fight all the grunts you encounter along the way. When you reach the gate of the galaxy at the end, open it to get the dazzling light TM. It's time to go back to where you started-remember, this is just a warehouse, not a proper Galaxy team headquarters. Return to Veil City and head northeast to the real Galactic hideout.

Fortunately, despite being a larger building, it is much faster to pass through the Galaxy headquarters than to run around in a warehouse. Open the door of the reception area and go up the stairs. There are several battles on this floor-the important thing is that you walk from the first left to a room, and there is a panel on the left wall, about halfway through. This will take you to a room with a bed where you can heal your party. Go up the stairs, do a double battle, then go down to the bottom of the room, where there are three warp panels. The one in the middle takes you to a room with an elixir and an invisible rare candy in one of the boxes.

Retrieve the same panel and use the panel in the lower left corner. From here, go up the stairs and use the Galaxy Key to open the door to Cyrus.

At this point in the game, Cyrus is shaking the Level 40 Dark Crow, the Level 40 Gore Bat, and the Level 43 Sneasel. Your best course of action is to use Luxray's electric attack to destroy his first two Pokemon, and then use 4x super effective fighting moves from Infernape, Staraptor or anyone else in your team who can learn from them to defeat Sneasel. After defeating Cyrus and getting the Master Ball as a reward, use the panel in the upper right corner of the floor to reach the laboratory where the Lake Guardian is saved. Go straight to the right until you see a red door. Go and go to Saturn, he will challenge you to the rematch. His Pokemon is only slightly stronger than when they were in Lake Valor-this time, he has a level 38 kadabra, a level 38 bronze and a level 40 poison raven, which means his team is better than you The team you just defeated is weaker than your battle with Cyrus. After defeating him, release the guardian of the lake and return to the beginning of the laboratory, leaving through the yellow panel. Don't walk through the entire building again on foot, but go down and bring the green panel back to the storage room on the right side of the building's entrance, which can be directly returned to Veil City.

With Cyrus being defeated and the Guardian of the Lake rescued, everything seems to be fine in the Shenao area. Unfortunately, the real danger has only just begun to emerge. Let's continue with part 17 of our complete Pokemon Brilliant Diamond & Shining Pearl walkthrough: Crown Hill, Spear Columns, and the capture of Teja Luca or Palkia.

Next post: A complete guide and walkthrough of Pokemon Brilliant Diamonds and Brilliant Pearls

The only spoiler you will find here is "Nowhere To Go" is obviously really good.

Cian Maher is the chief feature editor of TheGamer. His work has also been published in "Guardian", "Washington Post", "The Edge", "Vice", "Wired" and other magazines. You can find him on Twitter @cianmaher0.