Did Zoe really poison her twin sister Chloe? What’s the best way to rescue a super-sized pig trapped in a deep, deep hole? And how can you stop a chilly ghost

Originally published: Dutton Children's Books, 2003.

Science super-sleuths Drake Doyle and Nell Fossey are back—this time in a never-before-published addition to the popular series! They’ve got an exciting col

Fourth-graders Drake Doyle and Nell Fossey combine their detective and scientific investigation skills to solve a variety of cases involving a hungry cat, endan

Now in fifth grade, Drake Doyle and Nell Fossey continue to combine their detective and scientific investigation skills to solve a variety of cases, involving a