The newly built US embassy in London has only been in use for under a year. At first glance the lack of fences and other common security features seems strange, but the landscape around it has been set up as a replacement that would escape the eyes of most people. But Chase recognizes the pond and various levels of terraced grass as the moat, trenches and barriers they represent, even if they look nice and friendly for tourists. It's late at night by this point and there's little activity outside. Most of the lights, however, are still on and Chase can spot plenty of shapes walking around inside.
If Yin Dao is indeed inside he has a significant advantage over Chase in that he could get an idea for the buildings infiltration and weakpoints. In favor for Chase is the fact that Yin's target may not be inside the building yet, though that begs the question of what exactly he's planning. He's never sparred with Yin back in his days at the Black Lotus Society, but he knows that he's a mutant by how favorable he was generally treated. That likely means his chosen name, Hidden Blade, relates to that somehow...