The carva seed is aboard and we are now en route for Andoria. I've also managed to find a minute to stop off at Engineering and enquire about any maintenance work that might be underway in the Jeffries Tubes and ventilation shafts. Apparently, there is nothing going on. In fact, it was more or less suggested that it was probably the imaginations of an inexperienced crewman half asleep in the middle of the night.
Like hell it is!
So, I've loosened the grill to the shaft in my quarters, sorted myself out a little torch and stood a chair underneath the vent ready. Next time I wake up in the middle of the night, I'm getting up to investigate!