According to the survey conducted by Summoners' Hall...

...Algmos is currently somewhere on the faraway Snowy Mountains.

I'm pretty sure that's where Seria will be headed...

...so you should make your way there too.

To get to the Snowy Mountains there are three routes.

One through the Frozen Cave, another through the White Fields, and one more through Blizzard Forest.

However, the distance of each route towards your target destination is exactly the same.

We have no way of telling which route Seria has chosen, so I'm afraid we can't help you there.

That means your best bet is to head straight towards the Snowy Mountains for now.

Also, we have asked other Summoners active in the area for their help...

...so if you run into any of them, please join forces with them!

This is an official request from the Akras Summoners' Hall, so it's more like an order than anything.

Therefore, if any Summoner you meet refuses to cooperate, please do let them know it is their duty to do so.

Now please, go find Seria and bring her back safely!