They Never Came Home (Laurel-Leaf Books)
They couldn't have just disappeared! Or could  they?That's  the way it looks when  Dan and Larry don't return from a weekend camping   trip in the mountains. Then Joan, Larry's sister,  gets a mysterious  call from a man who says Larry  owes him a lot of money. Where could  her brother  be?Can Joan, with the help of dan's  brother Frank,  find Dan and Larry? Or are the two  destined never to returm?