Creating the Krakens turned out to be quite simple despite their massive Size, what actually took up your time and effort was the Connection, for the Sea is vast, and you have no Wish to see your admittedly monstrous Companions destroyed. Your work, as always, goes on at a satisfying pace in the fortified Docks under the Rock when you realised that your Siblings were about to come down to visit you, it seems like entertaining them with their Lions can distract them for only so long.
Though you can't do more than guess as to what it is they want from you, perhaps they're just interested in your newest Creations, which seeing as they can't really be hidden from the Troops and Servants moving around the Docks, doesn't seem all that farfetched to you. With how your little Boys are a giant Mass of growing and shrinking Black Tentacles, you would certainly be intrigued as well if you weren't the one creating them. While you wait for your Siblings you also manage to finish the much easier Task of adding the light-patterns to the Krakens, and like with your former Creations you do it with cold Magma, that gives off nothing but light.
Already the Westerlands benefited greatly from the warmth of your Artifacts, and you plan to do the Opposite for your Enemies, thus nothing but an eerie cold light emanated from your Krakens when your Siblings reached the Docks. But sadly even after all the work you put in, the Castle sized Krakens made of smooth Black Stone, and gleaming with the dark Red of the Magma still left your Siblings unfazed, truly, what a bummer. It looks like you will have to put in a bit more time and effort when your visit to the Camps is finished, but with Jaime and Cersei inviting you, you guess that your work won't be finished Today.
Your Siblings were annoyingly quite fearful while moving through the Camps filled with thousands of Red coloured Tents stretching all over the Surface of the Rock, but you could understand their feelings, as you now understood the reasons behind your Invitation. For one, they feared getting lost, which is a lot easier for someone that can't feel the Layout of the Castle than one might think, and then there was the matter of your Father, who they wanted to meet out of a Whim. The problem being the small Fact that your Father is the Lord of the Rock, and thus Leader and Organizer of the still assembling Army, which just doesn't allow the spending of time with one's Children on a simple Whim, Duty and all that still comes first, for it's actually kind of hard to indulge your Children when they're dead.
But you know that neither Cersei nor Jaime understand that Fact, hence you decide to indulge them for Today, seeing as you don't want to ruin their Childhood with things like this. Your Father, when you found him, was just like yourself still preparing for War, and while the King has yet to successfully draw together an Army for the Crown, to make it a proper War, nothing but the Snow and lack of Gold are currently stopping him from doing so, much to the concern of your Father's Vassals, for they have yet to see your Family's new Assets and Wealth.
This Cold-War as the Lords decided to call it was staining the Westerlands without rhyme or reason, for the lacking Knowledge of who would decide to march against their Lord agitated every House that's calling the Westerlands their Home. But you don't worry too much, and it seems neither does your Father, with how he still indulges your Siblings after a moment of Reprimand. For War costs quite a lot of Gold, and a certain King just lost the Taxes of his richest Vassal, while still having the Piles of Debts left behind by his Ancestors that happily drain his Treasury.
In other Words, no Gold and no Food equals no Army, or at least no Army containing the needed Strength to engage House Lannister, and thus only the Sea is a serious problem until a decent Force will make it to the Boarders in some two or three Years. But then a random Lord that didn't rule the Realm for the Crown wouldn't know that, and neither would you, if you couldn't perceive the physical Treasury the King has to work with, and well, while everyone and their Mother knows that the Kingdom is in some serious Debt, no one but yourself can claim to have Eyes on your Father's work.
And while you look for a moment at your Father's little Lion, you can't help but feel a decently sized bit of Pride in the Fact that he allows you to see his work, not that you ever had much use for the Knowledge, seeing as you would be more than fine if the King would manage to properly march against your House. You think about that beautiful future a bit more, and then decide to help out your Siblings when it became apparent that the time for fun has passed, and he once more intended to revert back into the Lord of the Rock Persona.
You did after all create something that the Lord of the Rock should at least take a look at before they're deployed, and you're sure that you won't have to hear anyone complain if the Journey from the top of the Rock to the Docks takes a bit of time. And as it turns out, you were right with your Guess, yet neither was said time spent with you and your Sibling alone, for your Father decided it was as good a time as any to make sure of his Vassals Loyalty to the Rock.
It's truly such a Lannister thing to do that you're unsure just how you didn't see it coming, but you're adaptable enough to deal with it while you continue to walk behind Jaime. With how limited your time was, and how unimpressed your Siblings were with your nearly finished and solidly connected Boys, you decide to go the simple way and make them bigger, as in growing them from Ship eating Size to Fleet eating Size, which is of course forcing you to send all but one of them away, and even then a fourth of the Docks was crushed by your now quite massive good Boy.