After you meet up with your friend at Lake Acuity, you head to the Team Galactic Headquarters in Veilstone City.

Talk to the Grunt

The Team Galactic HQ building is in the northeast of Veilstone City. Talk to the grunt standing outside. The grunt will go away and leave behind a Storage Key. Take the key, then go south, then west. If you keep going west, you reach a cliff that you can climb with Rock Climb. There is a Full Incense at the top.

From the Full Incense, go south down the cliff, then go east to where the road splits. Go north, and follow the road to the sign to the north that says Galactic Warehouse. Go east and then go north up the stairs that lead to the Galactic Warehouse. Go inside the warehouse building and check on the big locked door to use the Storage Key. Then go north and take the Dusk Stone. After that, go down the stairs to the east.

Team Galactic HQ

Go east past the hallway where you can see a scientist. To the north, you can battle a Team Galactic Grunt who has a level 37 Golbat. You get 1776 Pokédollars for winning.

Go north and follow the path. When the path splits, go north to find a Zinc.

From there, go south, then east, and you can battle a Team Galactic Grunt who has a level 35 Dustox and a level 35 Bronzor. You get 1680 Pokédollars for winning.

Go north and follow the path to the stairs. Go up.

Go east and use the stairs to go up.

Go west and you can battle a Team Galactic Grunt who has a level 37 Glameow. You get 1776 Pokédollars for winning.

There are two warp panels north of the grunt. Step on the one on the right, then go north and get the TM49 Scald. Go south and step on the warp panel, then go west and step on the warp panel there.

Go southeast and step on the warp panel, then go up the stairs.

Go west and step on the warp panel, then go east down the stairs. Go west and you can battle Scientist Frederick, who has two level 35 Kadabra. You get 1960 Pokédollars for winning.

Go west and down the stairs.

Go west, then south, to get a TM36 Sludge Bomb.

To the northwest, you find a Galactic Key. You can go west and use it on the door to give yourself a shortcut to the outside.

If you are ready to continue, go east and up the stairs, then go east and up more stairs. Step on the warp panel.

Go east and you can battle a Team Galactic Grunt who has a level 32 Wurmple, a level 36 Dustox, and a level 34 Cascoon. You get 1728 Pokédollars for winning.

Go east up the stairs, then go west. You can battle the second Team Galactic Grunt, who has a level 37 Stunky. You get 1776 Pokédollars for winning.

Go northwest and check on the computer to find a hidden Elixir.

Go south, then east, where you can battle a Team Galactic Grunt who has a level 36 Bronzor and a level 36 Stunky. You get 1728 Pokédollars for winning.

Go east and check on the locked door to open it with the Galactic Key. Then go northeast in the room to get a TM21 Dazzling Gleam.

Go back the way you came and go down the stairs. Go west and step on the warp tile. Then follow the path, and when it splits, go west up the stairs, then south to go back outside.

Heal up your pokémon at the Pokémon Center, then go to the northeast of town and enter the middle or west door of the Team Galactic HQ building. Check on the locked door to open it with the Galactic Key, then go north and go up the stairs there.

Check on the computer to the left to find a hidden Full Heal.

Go east and there are two Team Galactic Grunts. You can either battle them separately talking to them from above, or battle them at the same time by walking between them.

The Team Galactic Grunt on the left has two level 36 Golbats. You get 1728 Pokédollars for winning.

The Team Galactic Grunt on the right has a level 36 Golbat and a level 34 Silcoon. You get 1632 Pokédollars for winning.

Go east, then go north at the Team Galactic logo. To the north, you can battle Scientist Darrius, who has a level 37 Kadabra. You get 2072 Pokédollars for winning.

Go northeast and check to the left of the computer to get a hidden Ultra Ball.

Go south, then southeast, and step on the warp panel there. Go east and step on the warp panel, then go south and get the Max Revive.

Go back the way you came and go west to the Team Galactic logo, and go north from it, then step on the warp panel just north of the Team Galactic logo.

Go west and sleep in one of the beds by checking on the pillow. Then go up the stairs in this room.

Go east and check on the northeast computer to find a hidden Full Restore.

Then go west and there are two Team Galactic Grunts. You can either battle them separately talking to them from the right, or battle them at the same time by walking between them.

The Team Galactic Grunt to the south has a level 36 Stunky and a level 36 Croagunk. You get 1728 Pokédollars for winning.

The Team Galactic Grunt to the north has a level 35 Croagunk, a level 35 Stunky, and a level 35 Glameow. You get 1680 Pokédollars for winning.

Go west and step on the middle warp panel. Go south to get an Elixir, then go west to find a hidden Rare Candy below the box.

Go back and use the warp panel. You may wish to go east and down the stairs and rest in a bed. Then go back up the stairs and go west to the three warp panels again. Use the leftmost warp panel.

Go up the stairs, then go east and check on the locked door to unlock it. Then go north and you must battle Team Galactic Boss Cyrus, who has a level 40 Murkrow, a level 40 Golbat, and a level 43 Sneasel. You get 7912 Pokédollars for winning. You also get a Master Ball.

Go northwest and check between the desk and computer to find a hidden Nugget.

Then go east and use the northeast panel.

Go east to the end of the room, then go north through the door. Talk to the person, and you will battle Commander Saturn, who has a level 38 Kadabra, a level 40 Toxicroak, and a level 38 Bronzor. You get 3360 Pokédollars for winning.

After the battle, check on the yellow button on the machine and say Yes.

Go south to leave the room, then go west and step on the warp panel, then go south and step on the warp panel there. Then go south to go outside.

Use the Town Map to fly to Hearthome City. Go southwest in the city and use the gate that goes west to Route 208.

In Route 208, go west, then north up the stairs, then west, then south to where you can see a hiker. Go west from there and enter the cave that will lead to the Mount Coronet Summit.