[Popped up overnight is right. Ingo would have been happy to advertise it, but he's kind of... you know. Unable to.
As it is-- the train whose line reaches the lake quietly rumbles to life, sign flashing its destination. (Ingo's not sure he needs to sleep as a machine, but he has no idea how he's powered, so its best to conserve it until needed, right...) The doors won't open until they're close enough to board-- but gee, it's kind of odd that the subway does this without visible workers...]
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As it is-- the train whose line reaches the lake quietly rumbles to life, sign flashing its destination. (Ingo's not sure he needs to sleep as a machine, but he has no idea how he's powered, so its best to conserve it until needed, right...) The doors won't open until they're close enough to board-- but gee, it's kind of odd that the subway does this without visible workers...]