The Wonderland Board

need help here please. I can get the 3 keys, but on the 4th one I die. I put Qookie at the yellow x, after I grabbed the key and made the bridge. I moved Stinky from the red x so I could get to that 4th key. I took Peeque over to grab that key and he ended up dead?!? I thought I followed the online solution to the letter...but somehow somewhere I messsed up. I only done this a million times doing things differently each time but nothing is working

Ok, the gist is very simple. First, use Stinky to allow Qookie to collect two other keys, but don't make a bridge yet. Rather, use steel boxes as a shield, so Qookie won't come dead.
Stinky comes somewhere else. Peegue can collect the last key and come off. Qookie carefully fills a broken bridge with the boxes and gets back. Now all the characters can make it.

Thankyou for helping me