Starting Bubbles: 75
Recommended Potions: Give this level all you got!
Points needed for 1, 2, 3 Star: 70 000, 115 000, 135 000
Take away all bubbles under the lock before you unlock the chain. As you can see in the edited picture below, there are going to be Bombs starting their countdown on both sides when you unlock the Chain at Eternal Isles 15-9!
When you have dropped both side Bombs, aim via the wall to drop the ceiling. Leave the Mystery Bubbles until you are very close to drop the ceiling, as they will release Bombs if they give something nice.
Here is a non Charm video for Level 9 at Eternal Isles 15.