How to get "Riddler's Mind-Worm" Guide BFA 8.1
This is guide for Riddler's Ming-Worm , very simple guide which takes about 30-40 minutes to be done.
Locations:
Page 9 - New dalaran's innkeeper
Page 78 - Duskwood - Twilight Grove
Page 161 - Firelands - Ragnaros
Page 655- Uldum-Lost city of tolvir
Page 845 - Siege of orgrimmar - 4th boss
Page 1127- Caverns of time - well of eternity
Page 2351- Kun lai summit - tiget statue
Page 5555-Uldum - Halls of origination
And last one get the chest from Westfall beach
Hope you find this guide helpful , if you don't understand something please put the comment :)