To find Zeefzorpul in the Hag quest you can look up your map in this guide on Stratics .

You'll find the runes to the 20 Zeefzorpul locations in the two runebooks under the obsidian statue in the ground floor of the library.

 

 

In the runebooks you'll se the runes named Zeefzorpul 1 to 20.

Zeefzorpul 1 is the upper left map in the guide on Stratics. Zeepzorpul 2 is the upper right map and so on.