Fixed with a simple check. Teleport looks for NPC on alive list, but as they are
dead...

Note that Spencer death will still crash the game (Uh, it is a little worse than
just unwinnable apparently).

I think the game shouldn't crash when it looks to teleport a NPC and doesn't
finds it on alive list, but only on dead list. It should report the unhandled
exception, and perhaps even show a console message “attempted to teleport a dead
NPC” yadda yadda “game may be unwinnable or have broken storyline”.

That's why I'm assigning fluzz, moving priority, and renaming title to be more
clear. (And removing keywords)