Now, you’ve raided Raithwall’s Tomb and gotten your first Esper. There are some things you are free to do now. You could go straight to Jahara to meet with the Garif and end up with a sassy child following you around, but – technically – a few more scrolls could be got at this point. Even earlier in one case, but you would have your Pirate arse handed over to you by the monsters guarding them.
First of all, at this point, catch up on your Clan Hunts. Particularly the Flowering Cactoid and the White Mousse hunt. Your Clan Primer will tell you where to go; you really don’t need to ask for directions here. When both Hunts are completed, you’ll get some rewards. The Flowering Cactoid leaves behind a Cactoid Flower, and the White Mousse, as Hurdy is loath to admit, took a key along with it that you will retrieve after killing it. Talk to Dantro to listen to his tale, and to Hurdy to have the key fixed.
The key will give you access to all of the areas in the Garamsythe Waterway if flicking switches and draining sewage is your thing, and Dantro… Well, that story is a little longer, but as mentioned before: talk to everyone and leave no stone unturned. If you follow Dantro’s requests1, you’ll end up with a key to re-enter the Barheim Passage, and that’s where two more scrolls are hidden that you couldn’t reach when you were first there.
The monsters in these two areas, however, will probably be a bit too strong at this point in your journey to actually go and retrieve these scrolls, but knowing they are available is something, at least2.