For Medicus I, check St. Tyna’s Grove Tower, Boar’s Back Tower, Vera or the Matriarch. ATH and PowerPyx list these alternatives. The Rockfalls Tower claim is disputed and should not be your only plan.

Get the right manual

  1. Choose a tower chest or vendor route. Search the chest on St. Tyna’s Grove Tower or Boar’s Back Tower and verify the item name before leaving. These are Medicus I sources, not an instruction to collect Medicus II.
  2. For Vera, visit by day between Briar Sloughs and Maragir Wealds. For the Matriarch, follow Song of the Mountain and preserve peaceful access to the village. Check their current stock and price rather than assuming either vendor remains available in every story state.

Activate and verify

  1. Check the manual in your inventory and its interaction prompt. Then inspect Medicus I in the Witchcraft development tree at a shrine and spend the required point when available. Gamer Guides describes the manual as enabling a perk purchase, not directly granting its effect.
  2. Check Quickslot consumable capacity after learning. If unchanged, confirm the perk was purchased rather than merely revealing its entry. No fixed capacity increase is established here.
Out of range during the tower climb. This frame does not show a manual or chest reward.
Out of range during the tower climb. This frame does not show a manual or chest reward. · All Things How / Rebel Wolves

Looking for Medicus II instead?

Use a vendor or finish Lost Blood rather than treating Boar’s Back Tower as a guaranteed Medicus II chest. ATH's September 24 revision separates these routes; PowerPyx's vendor list also lists II at both vendors.

  1. Buy it: visit Vera by day between Briar Sloughs and Maragir Wealds, or check the Matriarch after preserving peaceful village access in Song of the Mountain. Read the full name Medicus II Manual before paying. Check current stock and price; do not buy I by mistake.
  2. Earn it: complete the investigation and follow-up merchant conversations in Lost Blood, then verify quest completion and the book in your inventory. Defeating the cave enemy is not the end of that chain.
  3. Learn it: follow the manual prompt, inspect Medicus II's prerequisites at a shrine and purchase the relevant rank when eligible. Owning the book is not the same as activating the perk. II concerns crafting, rather than the Quickslot capacity check for I above.

Finding Medicus I in the tower does not prove your save is broken. Do not repeatedly reload expecting a fixed II drop; use the vendor or quest route instead.

Why Rockfalls is marked uncertain

ATH names Medicus I in the Rockfalls chest; PowerPyx assigns Aether Flow to that tower and lists Medicus I at the other two towers. A random extra manual cannot be ruled out, but a guaranteed Rockfalls copy is unverified. Do not treat nearby map markers or climbing screenshots as proof of chest contents.

For climbing, ATH advises approaching a closer anchor when the prompt says Out of range. It does not establish an exact distance or a universal button. Related: healing supplies and Witchcraft manuals.