A ship - A great and poderous airship - is setting sail!
Known as the Little Behemoth, an airship under the command of one Mad Bard, Barton aut Lin, is being constructed in the Void inside Sigil's Ring, and will debark soon!
Of course, said Mad Bard - there's a reason he's called Mad, after all - is assured failure, as the airspace inside the Ring is non-traversable. The mere fact that the ship's construction is nearly complete in the grimy skies above Sigil seems impossible, but the ambition of his plan is nigh unto an affront to the Lady's sacrosanct Cage. You see, he plans to sail his airship out of the airspace of the City of Doors and out into that of the Great Ring beyond.
Is this a means of escape from the City? More importantly, could it represent a non-door means of entry into the city, and thus, a tactical threat to the Lady of Pain's unbreakable puzzlebox of a city?
The idea, as insane as the Mad Bard is commonly considered, is a surprisingly solid one: the airship operates under scientific principles, not magical ones. The gases inside the ballon are heated by fires from noxious chemicals, and as such, the magic-dead area of the Spire won't - well, shouldn't - interfere with its ability to stay aloft.
Fascinated by the constructive wonder above their heads, hundreds of Cagers can often be seen doing as was once only done by the Clueless: standing about, staring upward at the utterly barmy sight that greets them above. A great cloth balloon has been hoisted into the sky and is currently held in place by a series of scaffolds, awaiting the day - tomorrow - when the gases will be heated, the balloon filled, and... well, whatever's going to happen, cutter, it's going to happen tomorrow. At Peak. Don't worry about being there: You can see it in the sky from wherever you're going to be.
Heh, interesting...
Accessing Sigil without means of a portal (and by scientific means!) is something I expect my comic storyline will eventually be doing, so this caught my attention.
The only thing I'd wonder, though, is that the reason the Spire can't be climbed normally is because it is effectively infinite in height (though not visually). If that is the case, it wouldn't matter how long you floated up, you wouldn't ever quite reach Sigil. (I wonder, though, is it the same for going down? Would you simply fall forever, or is it just not possible to escape Sigil's bizarre gravitational pull?)