A paddle away and you’re right here. Fast, we must admit. Forget the tubes – they’re all done for. What we’re wondering is whether you are, too? This is it. You’ve made it this far. One final riddle left. Come close, dear reader. Look each other in the eyes. Not many have made it this far, far fewer have made it further. Put your brains together and ready yourselves for here it comes. Another clue…

No Embankment is going to hold back this flood, even one royally named.

Balham-tube-cross-passage