This time Danny didn't bother hiding a trace of a grin, his mind flashing back to the mentors of his childhood who had played similar tricks on him. It was a shame this training room didn't have the added bonus of snow-covered ground to leave his students baffled over why there were no discernible footprints in the snow to show that he'd arrived or departed in the first place, but he wasn't sure he was quite that good and in any case he was sure what he'd done already was sufficient to get his students minds' going. Well, those of them that hadn't trained extensively with Batman.

"Ah, that's a good question Scorpion, and the art of Stealth is an excellent next lesson to learn, especially for more delicate operations. The key is Oneness, with both your environment and those you want to avoid. Now-"

[i]“Receiving: B02 – Arsenal.”[/i] 
 
Iron fist put two fingers to his ear as the Tower alerted him to Roy's arrival, grinning even more in spite of himself. He was sure Roy had a good reason for being late and didn't really intend to give him a hard time over it, but there was still work to be done. Pressing slightly on his head, he broadcast himself so that he hoped Roy would hear.

"Good timing Arsenal, I was just about to run through a stealth scenario and I could use a hand in the training room. I'd think an archer would be more than capable of spotting anything I miss, if you aren't too busy to or wouldn't rather take a shot at it a along with them."