TES II: Daggerfall - Part 07 - The Lich of Castle Sentinel
The King of Worms contacts Bumblebus in a rather unorthodox way... and wishes to talk to him about some very important details regarding the Totem of Tiber Septim.
As per the norm, Bumblebus must complete a task for the King of Worms, this time to destroy a powerful lich in the dungeons of Castle Sentinel - and trap its soul.
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Liches have a tendency to kill you instantaneously, especially if you haven't got a way to counteract its powerful magic. I highly recommend spell reflection, as the magic is so powerful it can even one-shot the lich itself if reflected back.