Using Kufu to take a turn at watch, you rest through the night without incident. Welcome to 5th level (officially)!
Leo is up with the dawn, not at all usual for him. He’s got his gear packed and his hippogriff saddled before the day has fully begun. "I’m going to take a look and see what’s what. If that pirate mage has gathered backup we might fly into trouble. ". The owl is flitting about restlessly chirping and beating its wings. “Hush. You’ll not be going.”
He turns to the others. "My problem. Ahem, well… ‘patron’ I suppose you could call it isn’t happy with my reading that book. I’m starting to see why, but I’m not ready to share more just yet. It’s angry at me I think, but a deal is a deal and I have gained some new insights from the struggle. "
He climbs on the ‘griff. "I’m maybe of more use than I was, but I’m more dangerous to travel with as well. We all are I suppose, but I have a lord of hell angry at me. You’ll have to decide if that’s a risk you’re wanting to share. "
He snaps a harsh phrase and grabs hold of his mount. “I’ll be back within the hour”. With a ripple he and the hippogriff vanish from sight, with a rush of air the invisible beast springs into the sky.
The owl, with a sad “hoot” flies up to perch on the roof, scanning the sky for its master.
Staying invisible Leo would sweep the riversides. Try to spot if the pirate is holed up someplace. He’d also make a pass to see if the “bad guys” are visible and if the servants are OK across the river. He doesn’t engage with anyone and stays at a minimum of 150 feet.
Leo doesn’t catch any sign of Shoalar Quanderil (the pirate captain who has no idea that he’s Roan’s nemesis). You see a few harmless looking fishing boats during your sweep, but the other side of the river looks clear for a drop off of the captive servants.
The boats are of varying sizes. You would have seen a couple that are basically rowboats. One or two would be larger like a keelboat.