Help finding Teen Power Inc?

I have got about 20 of the 30 books in the Teen Power Inc. series, and really want to complete the series. I haven't read pretty much all these books. The one's I'm looking for are: Bad Dog Mystery Poison Pen Dangerous Game Dirty Tricks Hot Pursuit The Secret Enemy Dead End I'm looking... show more I have got about 20 of the 30 books in the Teen Power Inc. series, and really want to complete the series. I haven't read pretty much all these books. The one's I'm looking for are:

Bad Dog Mystery
Poison Pen
Dangerous Game
Dirty Tricks
Hot Pursuit
The Secret Enemy
Dead End

I'm looking through eBay, the Scholastic website, I've tried Googling and check in 2nd hand bookshops whenever I come across them, but I've been trying for a while now and just can't find them!!!

Does anyone know where I can get them?? I'm so desperate. Or if anyone has them and is willing to sell at a reasonable price (I have next to no money) please email me at pleaseceaseyelling@me.com

Thanks so much for all your help...
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