This one was a pain, it's very near Medusa if you've ever been there. Sorry for the bad formatting, I copied from the wiki how to get there. You will need a Lamian Fang Key to get through the zone, one may be obtained for free in Caedarva Mire (H/I-7),
The quickest route to Medusa is by using the Runic Portal to teleport to Dvucca Isle Staging Point and entering Arrapago Reef at (G-8/H-8) just northwest of the Staging Point.
Once you have entered the Reef from the Mire, you will be on Map 9 of Arrapago Reef. Head to the Southeast corner of (H-8) on this map and open the Iron Gate. No key is needed to bypass this door.
After passing through the gate, you will arrive on Map 3 of Arrapago Reef. From here you will make your way North then West to the Iron Gate located at the top part of the (F-9) square. This Iron gate can only be opened by using a Lamian Fang Key or by having a Thief pick the lock using the appropriate tools. Passing through this gate will take you to (H-8) of Map 10.
Once past the gate, head East to the Iron Gate at (I-8). Once past this gate you will be back on Map 3 of the Reef.
Edit: Once there make your way to F-6 to exit the zone. The book will be very close by.
Edited, Jan 12th 2016 6:15pm by Nanako
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