WALSE TOWER
My Level: 12
The tower is just north of the castle and town, you can walk from there. If you rode the dragon then land over by the Walse Meteor. Make everyone a Blue Mage with White Magic. You'll want to be able to fight decently, cast Blue Magic, and still be able to heal. Procced forward. You find out Garula stormed the tower. Had you not met the mammoth while still in town you'd be left wondering just who Galura is until you get to the top floor. Anyways.... In the room where the king is, head down a stairway into the water and inspect the vine to climb up. You will find a chest with a Silk Robe. Save at the save point. You eventually find a room with three more vines. Take the left one to find a Silver Armlet. The middle one leads nowhere. Take the right one. Open the chest for an Ether. Go upstairs and be ready for a boss battle against Garula.
After the battle the crystal shatters and you get some new character classes! Berserker, Mystic Knight, Time Mage, Summoner, and Red Mage. Once you pick up all the crystal shards except for the one in the back, you have to escape from the tower.
HEY! I CAN'T GET THAT LAST CRYSTAL SHARD!
Don't worry about that one. It is out of reach and you actually weren't supposed to get it until world 3. Why they left this behind is beyond me, it has confused many players over the years. Yeah. Ignore it. It's the Mime class, you cannot get it until the third world anyhow.