I am looking for maps for Heroes III.

Good day. I'm looking for a map. Size is most likely XL

I start in the top-left corner if I play as red. The terrain is snow. It stretches like a snake downward. On the right it's walled off by mountains, with one or two defensible passes.

At the bottom there's water. Below that is an island with a Utopia guarded by Rust Dragons. The idea is to defeat the AI on your own side. Then you need to capture a Necromancer's castle with a Boss with huge stacks of armies. The castle is located roughly at the top center. After victory, you can enter the underground through a quest guard. Along the way, you need to break through dragon guards.

If you play as blue, it's the same but in your own world with the same objective. Essentially, the map is impassable with one human player and a 2nd AI. The AI usually loses the game, and it's clear it can't break through its own quest guard. And without that, no one can get further.

The map itself is interesting, and I'd like to try killing the Necromancer without hit and run Armageddon, but instead try to find a way to deal with him in battle. Unfortunately, I can't find this map. Help me find it by name.