Yes! I was up there. Thank you! I was sure I was making them right.

This is so weird, but I tried it a bunch of times the other day and it didn't work, and I just tried

You will have to buy a new one the same way you bought the original one. Expensive lesson learned - 

I guess it doesn't take too long to fill back up with monsters! I just cleared it again. I have tons

I just cleared all but the last square between the dock and the target square. I don't know how long