Kingdom Hearts 2 Discussion
Look in your journal and in the treasure section, you should see a list of all the treasures you collected in all the worlds.
Look for Radiant Garden/Hollow Bastion and find the one you can't find.
If it is near the first one, it should be near the start of the world and if it is near the last treasure, it should be near the end of the world, etc, ect, etc..
-Hope this helps.
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