Do we know where our missing scouts were headed when they disappeared. Concentrate our search in those regions if so. 

It is worrying that we none of us have seen another wasp. It either means we're barking up the wrong tree and a total unknown is lurking out there, or the wasps are clever. Can we ask the bee's for any information they have in these bandits? How do they fight, what would be their objective, where would they set up camp if they were exploring the forest? After all, the third hive need not move if we can nip this problem in the bud.

It's saddening to know that my Fish Project is hitting snags, but I do like the suggestion of coating the pool with the same sort of material we now use for our hives. Hmmm, theoretically we could also shape something out of the substance. We could  leave an chunk missing, then later fill it with a separate slab that could be removed and put back in as we please to cut off the flow of water.

I think this idea has merit. I shall call it a gate, and tuck it away for refinement.

I'm now also interested in this south east area between the forest and the horrid toad march. I think that would be our next target for exploration  once this mast wasp business is taken care of.