[TatumsMom]

Found these on Ebay...

Left Behind <The Kids> Series !! - eBay (item 260462369030 end time Aug-19-09 18:30:50 PDT)

Not sure how many are in the series but here's 1 through 13...

Left Behind Kids Book Lot 1-13 LaHaye Jenkins Series - eBay (item 320413767413 end time Sep-17-09 14:22:58 PDT)

And there's more. Just search "Left Behind The Kids".

You might try Half Price Books, Records, Magazines, Inc. also.