What are the events of the wedding night?

In Mary Shelley's Frankenstein,
Victor approaches his wedding night with the memory of the creature's threat in his
mind. Because Victor would not create a mate for the monster, the monster promises to
visit Victor on his wedding night to Elizabeth.

Victor and
Elizabeth marry and travel on a ship to where they will live. They stand on the deck
while Victor worries about confronting the demonic creature that haunts him: for he is
sure that the creature will appear as promised. Finally, he sends Elizabeth to their
cabin, while he searches the ship for traces of his
pursuer.

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Suddenly I heard a shrill and dreadful scream.
It came from the room into which Elizabeth had retired. As I heard it, the whole truth
rushed into my mind, my arms dropped...

Great God! Why did
I not then expire! Why am I here to relate the detruction of the best hope, and the
purest creature of earth? She was there, lifeless and inanimate, thrown across the
bed...Could I behold this and live?...

While I still hung
over her in the agony of despair, I happened to look up...I saw at the open window a
figure the most hideous and abhorred. A grin was on the face of the monster; he seemed
to jeer, as with his fiendish finger he pointed towards the corpse of my
wife.

All that the creature
promised Victor has come true: he does visit Victor on his wedding night, and as
inferred, he robs Elizabeth of her life and Victor of his reason for living. It will be
from this event that Victor will inevitably decide to pursue the creature, even if it
kills him.