In "Frankenstein", what did the creature do when he returned to the cottage and found that the De Laceys had moved out?
When the creature discovers that the DeLaceys have moved out, he is seized by tumultuous emotions. At first, he enters a "state of utter and stupid despair", but his inertia quickly develops into "feelings of revenge and hatred" which he had never felt before. The creature makes no attempt to control his inclinations at this point and "allow(s) (him)self to be borne away by the stream...(his) mind...bent...towards injury and death".
The creature first turns his fury towards "inanimate objects". He "destroys every vestige of cultivation in the garden", then with "a kind of insanity...that burst all bounds of reason and reflection", burns the cottage to the ground. Returning to his refuge in the woods, he resolves to get as far away from the scene of his misfortunes as he can, but he has nowhere to go. The creature finally decides to seek out Victor. Although he feels "no sentiment but that of hatred" towards his creator, he reasons that there is no one else on whom he might have "any claim for pity and redress". The creature believes that Victor owes him something for creating him and then abandoning him, and he resolves to seek out Victor in hopes of finding justice (Chapter 16).