At level 121, with increased stats, I made my way along the only road to the second area.
At level 126, again following the only path, I broke through to the neighboring zone via an off-road route.
At level 134, I only reached the castle via an off-road route.
At level 135, I reached the opponent's respawn point and took a level 1 Consul.
At level 136, I attacked the opponent in the castle, along with his hero and army.
Thanks for the game!