Oh. Its been days then =/. for prediction no. 9. Its not likely. I think he'll just call Ran and say he'll be staying at Agasa for the night.
Btw, this has been bothering me. The APTX 4869... Won't the effect stay forever if the antidote for it won't be found for a couple of years or so? And for example, Conan and Ai can't find the antidote for at least 2 years(After 2 years they found an antidote for it). What would be their age? Since, It's possible that the cell won't be able to grow(their adult cells). And won't any antidote have any side effects like they will be older than what they used to be ? since the telomerase, is after all, responisble for the aging process.
i doubt aoyama gosho even thought of that when he started :D
i mean the poison is really just a plot device