Then his phone buzzed. A text from an unknown number: "The Pdfcoffee link expires in 10 minutes. Save it to your heart, not your hard drive. Then delete."
In the cramped cybercafé behind Oja Oba Market in Ibadan, a young botanist named typed the words into the search bar: "Iwe Ogun Pdfcoffee." Iwe Ogun Pdfcoffee
Behind it, the cave entrance was exactly where the PDF said it would be. Inside: no gold, no bones. Just a small iron bell, a gourd of palm oil, and a smartphone. The phone had one app open: . Then his phone buzzed