You never can
Tell with bees.
These could be the
Wrong sort of bees.
(It doesn't say in the manga, but this is taken from Winnie the Pooh by A.A.Milne)
So the city's eternal life could exist only in a vacuum.
Accordingly, since all those who attempted to leave the island were killed, there is to this day no way to ascertain the whereabouts... presuming humanity should be allowed that knowledge at all.
(From Chapter 1 of All Walking Tour of Cities You'll Never See)
An idling Arthur of bygone days,
Awaiting the key to unlock his haze.
An acrobatic snake in a musty old tomb;
Scrutinize it quick or face certain doom.
Within sleeping forest an old hag lies in wait;
Steal a kiss from her lips to set your path straight.
For the final crossing of your unending trail,
And offering of slumber will help you set sail...
(The riddle Jing and Benedictine must deciper to find the Elixir of Life)