Well when bạn start all bạn need is a Character thông tin các nhân and bạn can jump in. Here's the link for that.
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Now if bạn want to start on familiar territory then start somewhere in camp which bạn can find most of the đường dẫn for camp here.
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The ngọn lửa, chữa cháy in the Middle of the Cabins. bạn might even run into Hestia. So this is all bạn need and have fun!