At that moment, Luna was preoccupied with a door in Titans Tower East.  Every time she tried to open it, her hand went insubstantial and every time she tried to phase through it, she became solid just before touching it.  " I really hate doors," she muttered to herself.   She definitely needed to learn to better control her powers.  She had been improving at least, now it only happened at infrequent moments like this. Unfortunately, this happened to be a crucial moment.  Nerves. It was her nerves that were getting in the way. Why else would her powers fail her?  After taking a deep breathe, she tried it again.  The cool handle of the door was a welcome sensation in her hand. With glee she opened the door and rushed toward the exit.  Hopefully the other members of her team were on their way to the crime scene at this moment. It would be so totally embarrassing to let the bad guys get away because she couldn't open a measly door.