“Guided by Archsage Gotoh, Marth and his companions moved to the "Wyvern's Dale", located north of Macedon. The dale is a savage land populated by wyverns and ruled by barbarians. However, Marth had no time to waste. The world's fate was in his hands!” —Opening Narration, New Mystery of the Emblem
“Under the guidance of Archsage Gato, Marth and the others headed to Macedonia's north, to the "Dragons' Dale". It is an undeveloped region populated with flying dragons, and ruled by barbarians. But, there is no time to stop, because the fate of the world is in Marth's hands!” —Opening Narration, Mystery of the Emblem
In order to recruit Michalis, you must have Minerva recruited and alive. Have Minerva "visit" the village by waiting on it before the end of round 15. This will trigger a conversation between Michalis and Minerva. Afterwards, visit the village with Marth, and Michalis will join by the battle preparations in Chapter 22.
There is a secret shop selling stat boosting items in this chapter. It is located on an empty tile directly north of the top left vendor (original) or 5 squares to the west of the same vendor, on the plains, surrounded by mountains (remake).
Bait the Wyverns closest to your starting point with Tiki or one of your fliers. From there on, you can slowly clear out the other Wyverns as well as the Bishops with Swarm and Meteor to make the rest of the chapter more bearable.
For several turns starting from Turn 2, a Thief will emerge from the cave to destroy the village to the north of the map. You can either Warp one of your units or send your fliers to intercept them. In the remake, there would be three Thieves that would appear in front of the cave from the start to do the same thing.
Make sure to visit the village with Marth to receive Starlight from Michalis, as it is required to reclaim Falchion from Gharnef later on.
This chapter is the last chance for you to buy supplies before entering the Dragon's Table. Sell all the items you no longer need and stock up on the strongest weapons and healing staves you could afford. In Mystery of the Emblem, it is advisable to buy enough Wyrmslayers to easily slay the Mage Dragons in the next two chapters. The secret shop sells stat-boosting items. New Mystery of the Emblem also added an Arena next to the shophouses.
The boss guarding the seize point is equipped with Dulam, a dark spell that reduces the target's HP to 1. In the remake he is equipped with Glower, which ignores the Resistance stat of the target. He is not a threat as long as his nearby allies are eliminated first.
Fire Emblem: Mystery of the Emblem (Takayashiki Hideo novel) - Fire Emblem: Mystery of the Emblem (Shinozaki Sunami novel) - Fire Emblem: Mystery of the Emblem Game Book