Guests. The story is fiction.

It is possible even now on Earth to find such places where a leg has never been ... Or has it been a non-human foot?
"- Nikita, and what is iridium?
- Iridium? Metal such. Iridium...
Nikita told everything that he managed to get from the Internet, leaving the laboratory. The hair on the comb did not interest anyone. Now it was necessary to find this intersection, grandfather Prokhor and guests who left a comb of pure iridium in the drawer of the pier glass. Metal, which never before was on Earth! And to find out, after all, that there, further, at the end of this concrete road, which is not found on any atlas of highways ... "