Go over your managers head. Go to the person who is in charge of your manager, and tell them what's going on. Inform them that your manager's messing this up wi

Go over your managers head. Go to the person who is in charge of your manager, and tell them what's going on. Inform them that your manager's messing this up with a secret side project. I'd also be tempted to go back to your original project. If your new manager's taught you anything, it's that it is OK to work secretly on stuff without reporting to management. See if you can get the whole team to revolt.