What the achievement asks
Read three books while polymorphed into a nerubian. Five points, account-wide.
One potion does this and its bigger sibling
The books are unreadable without the Potion of Polymorphic Translation: Nerubian, sold by Siesbarg in the City of Threads at 45.10 13.00. It gives you a ten-minute window.
Ten minutes is enough for this achievement and for Smelling History, which wants twelve more books under the same effect. Players report finishing both on a single potion with minutes to spare. Set your waypoints for all fifteen books before you drink.
Siesbarg can be turned into a mount through his own quest chain, and doing that removes the vendor from your character. Buy the potions before you claim the mount, or you will be doing this on an alt.
The three books
The three are the volumes of the Entomological Essay on Grubs.
| Book | Coordinates |
|---|---|
| Entomological Essay on Grubs, Volume 1 | 40.10 39.80 |
| Entomological Essay on Grubs, Volume 2 | 39.79 40.50 |
| Entomological Essay on Grubs, Volume 3 | 39.10 42.59 |
All three sit within a couple of points of each other, so this part is a thirty-second walk once you are there and polymorphed. The volumes are not numbered on the ground, so read all three rather than looking for a particular one.
Credit registers almost the instant you click, but let the cast finish rather than running off mid-read. And if a marker lands on empty ground, check whether your map is on the Azj-Kahet layer rather than the City of Threads one: the zone is stacked and the two share coordinate ranges.
Where it fits
One of the pieces of You Xal Not Pass, which rewards the Shadow of Doubt mount and is part of Worldsoul-Searching, the War Within meta.