Can someone explain the seemingly unrelated, strange title ("The scorpion express")? Clickbait or a reference I don't get? The website / book is a really good

Can someone explain the seemingly unrelated, strange title ("The scorpion express")? Clickbait or a reference I don't get? The website / book is a really good resource about typography, something worth supporting IMO. Edit: The site apparently redirects traffic from hacker news to a call for donations. Not cool, especially since people think the posted and upvoted article is this one, and not the intended one. Mods, @dang, can we maybe replace the link with one through an anonymous redirector? Or add "(copy/paste link!)" to the title? Or just let people flag it...