The Maiden’s Catacombs are the first expansive set of ruins that you will come to in Atelier Ryza 2: Lost Legends & the Secret Fairy. Just like the other ruins, it will be filled with Fragments for you to find, but only after you solve all the initial research in the dungeon.
To check the research hold the button that would open your world map, and you will be giving a list of items or locations you need to find. This is as simple as walking around and opening every chest and making sure you visit every different location in the dungeon. Not everything will be marked, so keep your eyes open for routes you haven’t taken yet.
You should also be sure to collect every item in the dungeons, as sometimes they will be one of the required research materials. In this set of Ruins, you can find all five items on the research list in the first area, Memorial Garden. Three are in chests that will be marked on the map, one is a blue flower that grows in several spots in the area, and the last one is a hidden chest on the largest platform off to the left of the map. Only when they are all collected will you be able to use the compass to track down the fragments shows on the maps below.