I stayed in mine and hit the remote alarm at my desk.â
âBut the guy got away,â Frank said.
âOnly because of that false alarm across town at First City,â Sylvia replied. âIf they hadnât been chasing that down they wouldâve caught the thief red-handed.â
Joe lifted up some papers on the desk. There, under the pile, was a pair of crisp new hundred-dollar bills.
âWhat are you doing?â Sylvia said, jumping up from the chair. âI didnât say you could dig through that stuff!â
âYou always leave cash lying around?â Joe asked, holding up the two bills.
Sylvia seemed relieved. âOh, is that what you were looking at?â She snatched the bills fromJoe. âThose are the newest additions to my collection.â
âCollection?â
âYeah. Here, Iâll show you.â Sylvia opened a file drawer in the desk and removed three or four manila folders. The Hardys watched over her shoulder as she opened the folders, revealing stacks of crisp currency.
âWow!â Joe exclaimed. âThere must be thousands of dollars in there!â
âNope, wrong answer,â Sylvia said, handing the Hardys each a fifty-dollar bill. âCare to guess again?â
Frank rubbed the bill between his fingers. âZero,â he said. His fingertips were smudged with green. âItâs worthless counterfeit.â
âYou win!â Sylvia said, pointing at Frank.
Joe held his bill up to the light. âWhereâd you get these?â
âThe bank, of course,â Sylvia said. âYouâd be surprised how often customers come in with bad money.â
âWhy would someone try to pass counterfeit bills at a bank?â Frank asked. âThat seems pretty stupid.â
âOh, most customers have no idea itâs fake,â Sylvia said. âSomebody passed it off on them and they bring it in to deposit into their accounts. They can get pretty sore when the tellers inform them theyâve been ripped off.â
âThatâd be a bummer,â Joe said. âHowâd you end up with it?â
Sylvia blushed. âTechnically, weâre supposed to send all counterfeit back to the Federal Reserve. Every now and then, though, I offer to buy the bills from the customer.â
âSo you are breaking the law,â Joe said.
Sylvia cringed. âI wish you wouldnât tell anyone. If I didnât buy these, the customer would get nothing. And besides, I figure all this counterfeit is safely out of circulation here with me.â
âDonât worry,â Frank said. âWe wonât tell, will we, Joe?â
Joe dropped his bill back on the desk. âNo, I guess not.â
Frank picked up another hundred-dollar bill. The ink on this one didnât bleed. âHow can you tell if theyâre no good?â
âLotâs of ways.â Sylvia opened another folder. âHereâs a real hundred,â she said. âI keep it around for reference.â She held the bill out so Frank could see it. âFirst of all, the green ink is a special kind that doesnât photocopy well.â
âNo way! You mean some people make counterfeit bills by putting money in a copy machine?â
âSure,â Sylvia said. âItâs actually illegal to photocopy currency unless you enlarge it at least one hundred and fifty percent.â
âWild,â Frank said. âWhat else?â
Joe tried to act as if he wasnât interested, but found himself creeping closer to watch. âThey make that ink in Switzerland,â he said, remembering his phone conversation with his father.
âThatâs right!â Sylvia said. âIâm impressed.â
âI know a few things,â Joe said.
âHow about this?â Sylvia asked. She tilted the bill in the light. The number â100â in the lower right-hand corner shifted from green to