Worshipper – “Agral’s Decision” [Campaign 2, Mission 5]

Wow, how come so many people have those dragon hordes appearing before the bridge?

I'm playing Heroes for the second time now (well, sort of – my husband played it the first time, and I just watched him play sometimes). I breezed through this mission on one try (version 1.6, "Veteran" difficulty). I went across the entire map through the islands and the dungeon. There were 15 dragons, if I remember correctly. I defeated them easily, even on auto-battle!