The next day, by the outskirts of Dalaran …

HINT – Additional Peasants may help construct a building for a faster build speed.

HINT – Increase your gold mining capacity by mining from a newly discovered gold mine.

HINT – Press the Call to Armas button on your Town Hall in order to change your peasants to Militia.

Investigate Andorhal

HINT – You can purchase items from the Goblin Merchant by moving a Hero near it, and then selecting the Goblin Merchant building.

Arthas: All the granaries are empty!  The shipments have already been sent out.  We’re too late!

Not far from Andorhal, Arthas and Jaina slay Kel’Thuzad and his Abominations.