Papyrus Riddle: Nature's Way
Find this riddle in the Great Synagogue in Alexandria.
"In the east section of the Kanopos Nome is a ravaged land, where many trees fell and lost their home. I'm by the orphan tree whose parents fell down nearby, pointing toward their lonely daughter." The solution in on the big, landmarkless island east of the city.
There are many fallen trees, but it's the two biggest you're looking for, with big full heads. The solution is at the base on the (much smaller) tree they point to.