On returning to England in 1999, Katherine began writing Troll Fell, which was published to critical acclaim by HarperCollins in 2004.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request. ### Instruction: List the MITRE techniques contained in the text. ### Input: On returning to England in 1999, Katherine began writing Troll Fell, which was published to critical acclaim by HarperCollins in 2004. ### Response: .