Someone is polluting Small Shadow Lake, and it looks like a job for the two young detectives. Their neighbour, Erin Darby, has the scientific skills they need to crack the case. But Erin's a mystery... This description may be from another edition of this product.
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $15. ThriftBooks.com. Read more. Spend less.