As I feared, Solomir, in his foolishness, attacked Eisidus and freed Erathia... And then he attacked Yorogos. He beat him so badly that he apparently couldn't escape, and Solomir got the artifacts. After the battle, the already weakened Solomir was easily defeated without any losses.
I don't really like maps like this, where you have to understand the author's logic, right up to the last move, to the last unit of mana.
Справочник по НоММ-4 http://handbookhmm.ru/pamyatka-dlya-heroes-iv.html
Памятка по НоММ-3 http://handbookhmm.ru/pamyatka-dlya-homm-iii.html
и HotA http://handbookhmm.ru/vyishla-obnovlennaya-pamyatka-dlya-homm-iii-hota.html