The Island is the HQ for the Messengers, the secret third organization trying to get to the bottom of the mysterious scraps that are found in each of the invitation envelopes that the invitees of all three groups are sent.

The HQ is located in the one of the smaller caves near Durem. It's in such a rural part of the mountain that it is very hard to find.
There are five caverns. The first and last caverns are the only two not interconnected to the other two; While Caverns 2, 3, and 4 are connected to each other on either side by tunnels, Cavern 1 is only connected to Cavern 2 and Cavern 5 is only connected to Cavern 4.

The Cave is by no means fancy or done-up like the other two lairs of VOG and AOGH. After all, it is a newly-formed organization, and incredibly secret, so it just looks like a normal cave aside from the hanging kerosene lamps and standing torches inside the cave.

Cavern 1 is just a regular cave, and absolutely NO communication is to take place in there. After all, passersby or those who may be a threat to the Messengers' mission could be lurking and overhear what could be very important conversation. There is a crudely constructed yet well hidden trapdoor near one of the walls, which leads to...

Cavern 2 is the commute room. That is where all tittering and chattering about things that don't have to do with the Messengers' main goal takes place.

Cavern 3 is the meeting room. There is a large, flat stone slab in the middle that is used as a meeting table.

Cavern 4 is the members' room. It's both an employee lounge, where snacks refrigerated by unknown means are stored, and the President's/Vice President's/Secretary's office. A lot of social interaction goes on here.

Cavern 5 is accessible by authorized personnel ONLY, because it is the records office and the storage room for the peices of the document. The records keep track of each member; their progress in finding peices, their displays of loyalty to the Messengers, and each member's affiliation with the other warring groups.

Loyalty is a serious issue to the Messengers, because you never know who could be leaking information to their affiliated group.