The good news is that tipping the decks of the longboat 90 degrees doesn't seem to have an adverse effect on anything but Rothgar's state of mind.  Everyone's feet remain firmly planted on wood -- except for Red's, which seem to be perfectly comfortable clambering through the rigging while coming into contact with as little of it as possible.<br/><br/>The trip to Sigil is mindboggling -- although there are vast tracts of complete emptiness to pass through, as the longboat sails the infinite void, it passes all manner of things, both mundane and unexpected.  At one point, your course takes you past a massive stone head, long since severed from some immense body.  The sculpture is so large that you can easily make out its graven features from a significant distance.  As you approach closer, the huge head passes harmlessly and sluggishly across your bow, and you realize it is entirely carved from one immense diamond!  With no way to collect the nearly infinite wealth, there is nothing you can do but just watch the colossal smiling face as it drifts past.<br/><br/>Eventually, you see your destination looming out of the space before you.  It looks like a vast starfish, with arms lined with ships stretching out in all directions.  The arms resolve into long piers, and the body of the starfish becomes a chunk of dirt and rock with a large stone ring mounted on its flat, grassy surface.  Streams of people, wagons, and pack animals are passing through the ring, but only on one side!  The other side of the ring is completely devoid of activity -- it is as though the people passing into the ring are vanishing and the people coming out are materializing from nothing!<br/><br/>As your boat approaches the star of wood and stone, a smaller boat manned by a horned man and a gnome darts out toward you from between two larger ships and waves you down.  The gnome hefts a rope, and by his gestures you assume someone is intended to catch the coil when he throws it your way.