Quick answer: It’s in the Phantom Illusionist Ruins. From the Ruins bell, climb the snowy log ramp, drop to the plank deck, slide down the chain, and press E at the violet glow by the red skeleton heap.
What it does
Master Healer’s Memory is filed under “Medicine Upgrade Materials”. Its card reads “Required to upgrade Medicine from Lv. 4 to max level.”
That makes it the last material you need to finish upgrading Medicine.

Join readers who trust AllThings.How
Add us as a preferred source on Google so our practical guides show up first next time you search.
Add to Google Preferences →How to reach the Phantom Illusionist Ruins
The Ruins open once you bring all four Acolytes’ masks to the Four Guardians’ Mirror on Meigu Lake. A cutscene drops you at the Phantom Illusionist Ruins bell. Ring it, and its menu shows “Return to the Waking Realm” as the first row.
For later trips, press E at the mirror. It offers “Traverse to Previous Bell” / “Traverse to First Bell” / “Leave”.
Where to find it
No enemies stand between the Ruins bell and the item.




The second Ruins bell
Another bell sits a short climb from the skeleton floor.


Its menu is also titled Phantom Illusionist Ruins, with “Return to the Waking Realm” as the first row.







