"Hi, I'm not here at the moment, please leave a message."
One hundred and forty-one days have passed since a live voice replied at the other end. Seven helicopter searches. Dozens of emails.
Thousands of kilometres driven, from Nelson to Invercargill. Hundreds of kilometres trekked, from the tip of Golden Bay to the edges of the Marlborough Sounds.
But the numbers aren't important any more. After five months, no-one knows even where to begin.