He went to the closet and found that it was full of multiple sets of workmans overalls. Though they were clean and well made, they looked very old-fashioned. He picked out a pair of dark blue overalls and slipped them on. Of course they were far too big for him, so he rolled up the pant legs. Then he looked in the mirror and marveled as his appearance. It looked like hed stepped out of the 1940s!

As soon as he was ready, he ran back out to the factory floor, eager for his first lesson from Armando.

Im here, he said, wide-eyed, as he skidded up to the old man.

Armando nodded at his appearance, clearly approving the fact that he was no longer wandering around in pajamas.

I see youve found my old workers closet, he said. These clothes were left over from the war effort. People worked here and slept here around the clock back then.

Do you mind me wearing them? Oliver asked, suddenly worried.

Not at all. Its nice to see them being put to some use after all these years. Armando looked away into the distance as if reminiscing on better times. Now. You were wanting to demonstrate your abilities to me, if I recall.

Oliver nodded, though he was filled with apprehension. He chewed his lip and began to follow Armando past a row of workbenches. As they went, Oliver noticed that one was covered with different fabrics and a pile of wires. He knew right away that he was looking at all the theoretically necessary components to create an invisibility coat. He craned his neck as they passed, then turned, wide-eyed with surprise, to face Armando.

Are you making an invisibility coat? he asked.

Not anymore, Armando replied, dismissively. No ones ever cracked it and Ive not been able to either.

Ive been trying myself, Oliver confessed.

Well, if you want my advice, best not waste any more time on it, Armando replied. I gave up years ago.

Oliver couldnt help but feel disappointed. The thought of cracking the invisibility coat was one of the things that excited him the most about inventing. But if Armando didnt want him working on it, there was nothing he could do. Hed have to let that particular dream go.

Oliver continued following Armando through the winding corridors of the factory. He soon recognized that they had entered the corridor with the room that contained the big military tank. To Olivers surprise, this was the room they headed straight into.

You dont want me to make a weapon, do you? Oliver asked, staring up at the huge tank with wide eyes as they drew closer.

Goodness, no, Armando said. I want to see if you can make the periscope inside digital.

Oh, Oliver said, not entirely certain that that was any better.