First, when you enter the desert just move yourself into the next screen by keeping a straight course. Underway you can set the Pound-Psynergy to a hot key, as you need it much in Yampi Desert. Use Pound on the pillar near the exit of the screen: a guardian ring is hidden in the treasure chest. Now you'll meet up the leaders and guards from Madra. They are looking for Alhafra, too. The point is, they are lost! Well, maybe you should look for an exit, too, so continue walking to the south-east.

You'll come into an area where there are a lot of pillars. Pound the first pillar you encounter and pass trough. Then walk all the way to the east and pound the last pillar. Then pound the first pillar you'll encounter, then climb up the ladder. Walk left over the stakes/pillars in a circle to meet up Blitz, a powerful Jupiter Djinni (very handy in battle, as Breath couldn't attack), who is sitting on the middle of a plateau. Once you've caught him, exit the screen at your right hand.

JUPITER DJINNI BLITZ
Max. HP	Main Attacks	Weakness	Resistance	Exp. Pts	Coins	Drops
305	Ray, Whirlwind	Earth	Wind	109	126	-

Now you see three stakes and a psynergy. That's just because you are close to a boss fight. First pound the stake in the middle, then heal yourself with Felix' Cure psynergy and then pick up the Psynergy stone. Exit north.

Pound the stake, when the Scorpion is walking north of it. If you have a bad timing, the Scorpion will run endless loops (if you do so, just walk out of the screen and come back to reset the stakes). See the screenshot at the left. If you succeeded, the Scorpion will test you once more before a battle.

Now you see two pillars! However, you need only to Pound one and that's the one at the right. As soon as the scorpion is moving from the right to the left under the stake, Pound it. When he approaches it next time he will change his direction north into the circle of stones. See the screenshot at the right. When he's in the circle of stones prepare for battle. Walk into the circle and Scorpion will demonstrate the power of Scoop. You will fall into a hole and you'll battle him.

King Scorpion has the ability to give you lots of damage if you don't watch out. Be sure to heal every turn, as you might not have the items/psynergy to revive downed partymembers. The most nasty attack of him is Twin Shear: a strong individual attack. He also can poison you, or he can use Desert Gasp on all of you three.
Scorpion is vulnerable to fire (and resistant to water, but that should be a problem since you don't have a Mercury Adept yet), so summoning Zagan is a good idea. Fume also comes in handy.

Once you've finished him, you'll earn a scoop gem. With the scoop gem you can dig into the earth. Equip it and stand next to the center. Use Scoop on the middle and stand on the X. Wait until water will rise.

KING SCORPION
Max. HP	Main Attacks	Weakness	Resistance	Exp. Pts	Coins	Drops
1168	Twin Shear Desert Gasp	Fire	Water	440	228	Vial, Scoop Gem

In the next screen you should walk into the cave, but before you do, Scoop on the lonely spot to the right and you will earn 315 coins (1). Once you are inside the screen you'll have to face sandstreams. Run fast to the north and then take yourself against the stream to the northeast. Pound the stake first and then you'll have access to a Blow Mace. Stay in the stream to reach another chest with a Hard Nut in it. Exit in the east, then walk out of the screen at the right again.

Take yourself down again and you'll see nine stones aligned together. You can use reveal on it, actually. If you have so, you'll see an arrow (2). This points to a cave, altrough you can't access it without having the last psynergy of the game. Which is near the end, of course. Walk further and you'll see another group of stones. This time it's a Lucky Medal (3). Of course you can't grab it until Sheba possesses the power of Reveal. Climb the stairs at the end and move to the left when crossing the Sandfalls. Stay on the plateau and use Lash on the Rope, then take yourself down with the Sandfall in order to reach the Trainers Whip (it's like the Mysterious Card). If you don't want to, then just take the stairs, walk around the sources of the Sand falls and take yourself down at the RIGHT side of the sandfall in the back. Then you should exit the Desert.

You have two exits: in the north and the south. The North will take you to Alhafra, the South to Airs Rock and Garoh. Go to Alhafra first, as going to the south is a one-way direction, we'll come back here later. Exit the desert to the north, then follow the road northwest to Alhafra.