1 Locked Bubble(1 chain),
A good tips for level 116 is to be patient with the lock. You should match the locked bubble with two other bubbles of the same colour. Then th eghost chain will disappear.
Pop the row of black bubbles before popping the lock though! With the black bubbles gone, the infection is not a big deal, because it is so easy to clean out bubbles under the infection, so it can not spread and glue itself to the black bubbles.
The Strategy from above as a video from our Youtube Channel named BubbleWitchSag, please subscribe. :)
The strategy I suggest in this posted and screencasted is really good, but skillgaming on youtube is eager to burst open that lock and manage to get almost 2 Stars with that tactic as well, so everyone should choose for themselves.