I don't like the look of the Deschapelles Oscillation caused by that last move. Consulting my Federov Tables suggests that the best way to return some balance to the game is to march boldly to Blackwall and place a mauve podume into play. This I now do.

hmmm... Looks like a quick colour (color for those on the wrong side of the Atlantic) round Whitechapel

Invoking a colour cascade to get the necessary momentum to strile to Silvertown, doubling my podume stack at New Cross Gate.

And now for a Double colour move Golders Green.
Mearly a crossroads, in the middle of fields, in my day.

Moving carefully, so as not to disturb newly re-established balance ... tip toe cautiously to Edgeware Road