To be honest, I'm not very good at finding clues (in the early games, there were at least a few, and it was easier), so I can't say for sure, but doesn't it seem to you that there's no way back from Hosrov to Shankham? There's not even a single mention of it on the Wiki.
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Резара - Аксель - Орвальд - Эмилия - Стэфания - Амвросий - Лестер - Альсира - Алария -