First edition, first printing. SIGNED by Douglas Preston on the title page. Very Good- in Very Good+ DJ; light edgewear to lower DJ and one tiny scratch to the DJ spine panel. The book has moderate rubbing to the lower boards; cracking between the title and half-title page, spine and binding remain tight (it appears that the pages were stuck together near the binding and the previous owner pulled them apart too forcefully). The second collaborative novel by Douglas Preston and Lincoln Child, involving genetic engineering and a secret laboratory.