Determine, step by step, if the following statement is either true or false: 'The author of Frankenstein also wrote a novel titled The Last Man.

1. Identify the author of Frankenstein, which is Mary Shelley.
2. Research if Mary Shelley wrote a novel called The Last Man.
3. Confirm that The Last Man was published by Mary Shelley in 1826.

Conclusion: The statement is true.