The Horizon Codex (+25 Pages)

Pass beyond the High Gate alongside the Merchant Venturer.

Raise Supremacy: the Dawn Machine to Triumphant.

Collect three port reports and deliver them to the admiralty in Fallen London to unlock access to the Dark-Spectacled Admiral.



Ask the Admiral if there's anything in particular he needs to get a quest to obtain Strategic Intelligence from a foreign port. Collect two of these and combine them (right-click on the item in your hold and select Use, which will let you combine them with the addition of either a Memory of Distant Shores, a Zee-ztory or a Moves in the Great Game) to create a piece of Vital Intelligence. Turn this in to the Admiral to unlock access to the Voracious Diplomat.



Hand in additional pieces of Vital Intelligence to the Voracious Diplomat instead of the Admiral to raise the Supremacy: The Dawn Machine value.

If you he isn't already aboard, you can recruit him in Fallen London or the Iron Republic.



Speak to him by right-clicking his portrait in the Officers tab and invite him to dine with you (you will need 5 torpedo components).



Bribe the factor on Demeaux Island with 200 echoes.



Travel to Aestival and give up 5 supplies to get the Seal of the Red Science. Take it and a judgement's egg (these can be bought from Irem, and maybe get a longbox while you're there) to the Iron Republic to awaken it.



Next, take the seal and 3 devilbone dice to the blacksmith at Station III to finish the weapon. If you aren't able to access the blacksmith, you most likely need to deliver a Soothe & Cooper Longbox to the Austere Acolyte first. There's a lot of options when you're trying to deliver it but the result is ultimately the same.



Sell the Memento Mori to the servants of the Dawn Machine at the Grand Geode for 3 points to Supremacy: The Dawn Machine.

There are two ways for a character to earn the Horizon Codex. The first of these is a lot simpler to complete, but I've added the Dawn Supremacy path as well for the sake of thoroughness.Essentially this means completing the Merchant Venturer's storyline by filling the required number of his orders (between 6 and 10, depending on your luck), delivering the goods that he has requested to him in Fallen London. After the last of these has been completed, a new story commences, "The Venturer has a plan". The plan requires you to take his materials (for which you will need 40 hold space) to him in Avid Horizon. If you start the quest without realising that it will take up most of your hold until you complete it, you can always ditch the supplies and get them from him again in London.Once you are in Avid Horizon with the materials - along with a searing enigma and at least 50 hearts - select the "Open the High Gate" option and pass beyond with him to receive the codex.Raise the Dawn Machine supremacy by carrying out tasks for them. You can get started on this by following the normal steps for gathering intelligence:Sadly this only works reliably until the supremacy of the Dawn Machine reaches 2 (Gleaming), after which the chance of delivering intelligence raising this value drops to a very small chance. Luckily, there are three other actions you can take that will raise DM supremacy:1) Deliver Sphinxstone to the Grand Geode - 1 point.If you make deliveries of sphinxstone from the Salt Lions to Fallen London, after about the 5th delivery you should be approached by the Bright-Eyed Sequencer, who asks you to take the delivery to the Grand Geode instead. If you do so (ignoring Penstock's pleas to give it to the Bazaar), you earn another point of Dawn Machine supremacy.2) Trade away the Memento Mori at the Grand Geode - 3 points.F the Irrepressible Cannoneer's storyline to construct the Memento Mori and then give it to the Dawn Machine:When you reach 7 supremacy (Triumphant), an event will happen as soon as you're out of the city screen. It will award you the codex.