Sounds great to me. The only reason there was such a short amount of time between those two posts is that it is how it would have been experienced in-game. Essentially "Your familiar sees something" and then a few rounds of conversation about what they should do occurs "and now your familiar doesn't see it anymore." Though honestly I didn't know it was only ~6 hours from one post to the next, and I wouldn't have made them THAT close together had I had that in mind.