23:52, Day Thirteen. Absent contact with subject Evergreen after 09:30 this day, investigation terminates per protocol. We must accept the reality of failure and hope in some small way our results, though negative, will further the advance of human knowledge.

We are sure subject would understand and feel it most appropriate to close this record with his words, which have guided our efforts from the start:

"The end of books reflects a more profound privation, the loss of nature itself. For every book was always in essence a book of nature, an assertion of that most human desire to understand the order of Creation, if only in small and fleeting fragments of sense. As the future will no doubt show, we abandon this great project only at our peril."