Cross Edge
24 Achievements
191-233h
PS3
The Grave Robber
Find 150 hidden items using Search. Details for this achievement will be revealed once unlocked
12.7%
How to unlock the The Grave Robber achievement in Cross Edge - Definitive Guide
You will get the ability to search very early in the game and it's impossible to progress without using it. Periodically, at certain story events after collecting so many souls, your seach level will increase, allowing you to find souls that previously would not reveal for you.
Refer to this post for maps for almost all souls in the game.