The elf woman asserted she would keep an eye on Reinhold, but it was not the positive affirmation from the man himself that he really wanted.  The implication that some manner of expediency would called for was not lost to him, and he thought for a moment, what the best plan of action would be, quickly formulating what, at least to him, seemed a reasonable and plausible use of time, resources, and cost-efficient travel.

He snorted, then took off toward Fanghorn, only slowing down when he could truly see the palisade in the moonlight.  Working quickly, he planted seeds in an unusual pattern, mixing several types based on what he had determined of their growth and magical properties earlier, and snatching up seeds from the moonlit grasses and wildflowers along the road leading to the small sprawling village to further augment his supplies. This much work, this far from the wild and robust magical nexus of home, in so short a time would be terribly taxing for him, but he had the advantage of time on his hands, and so he took the opportunity to plan this out, and plan it well.

The first area of business, was the road just as it was entering town.

Carefully, he grabbed an end of old dry plant stalk out of the ground, and used it to draw on the surface, laying out quadrants, sextants, and plotting areas of influence in the ways his dad had shown him. He didn't have a forest to work with, but he could maybe set up some low-level self-sustaining reactions, with proper placement and planning, and that's exactly what he was doing. Marking, measuring, and sewing appropriate seeds in the dark. A more or less circular area filled with grapes and green briar, surrounded by a larger circle filled with grasses, flowers, small shrub seeds, and anything else he could scrounge up that was growing wild in the area that provided the needed influences, surrounded it. Small dark spots dug and covered over in the silver light.

Carefully, he trotted up behind the farm houses and away from dogs and others that would give him away, and snuck in close to the curtain wall, then proceeded to seed the curtain wall edge with 3 roughly triangular wedges of a circle near where the walls of the keep and palisade met, and across the north most exit, before sneaking back along the side of the river, toward the south end of town again.

Getting in near the south gate was the hardest and most risky part of the plan, but also, in his assessment, strictly necessary if this fort was to get completely cut off, and reinforcements rendered unable to enter or leave with any degree of rapidity. It required getting in tight up against the buildings closest to the gate, and had the highest risk of detection and being shot at. At the very least, in his current costume it would be unlikely to draw a very large force-- just enough to chase him off into the night most likely, should he be detected. He did not really seed it as well as he would have liked, due to the difficulty of getting in close enough, but he did seed it at lest partially, then took off across the fields, and then back over the road to the south and east, and toward pesti.

There, in a close area where the road had to go through dense forest, he paused a moment, and smiled to himself. Nature had provided a means to an end for him, in the form of forest edge wild roses. In a fit of puerile self-indulgence, he snuck in and collected several of the mature rose hips from the heavy brush, chewed them happily, then spat out the seeds into one of his paws for use here and later. Once more, he seeded the road as it entered the wood, and then seeded the area just before it to help influence that growth. If all went well, that road would become an impenetrable wall of roses and thorns once it was set off, then took off once again, back west, past the group, and then south toward the bridge.

The sun was beginning to peak out of the horizon by the time he had finished his work there-- Roses and green briar, with grape vines all around the support pylons of the bridge, and influence gathering caches on either bank.

He was physically tired from the rapid pace of the work, the excessive running needed to clear the distances needed, but he began the final push.

First, the regions of influence-- With them up, sprouting and closing the bridge and roads would be much easier, as he only needed to guide what he had set up, then allow it to continue growing without him. By midday, there would be impenetrable masses and tangles at those locations.

Retracing his way back, as the sun was rising, he returned to the forest edge near Pesti, and worked his magic there. 

He was a panting and snotty nosed mess by the time he made it back to the meeting area...