How do I switch to the second tab that I open by holding cmd/ctrl?

[Nakilon]

So I open another tab via

browser = Ferrum::Browser.new ...
...
browser.at_xpath(".//*[.='Детали']").click keys: %i{ ctrl }

then from

browser.evaluate "document.location"

I see that I'm still operating the first one. How do I switch to the new tab and operate it?

[Nakilon]

browser.pages.last