Complete these first; The New Plague is the final step.

1. 1
   A Recipe For Death · level 12

   Collect 6 Grizzled Bear Hearts and 6 samples of Skittering Blood and deliver them to Master Apothecary Faranell in the Undercity.

   Pick up: Apothecary Renferrel, The Sepulcher, Silverpine Forest · Turn in: Master Apothecary Faranell, Undercity
2. 2
   A Recipe For Death · level 15

   Retrieve Apothecary Berard's journal from Pyrewood Village and take it to Apothecary Renferrel at the Sepulcher.

   Pick up: Master Apothecary Faranell, Undercity · Turn in: Apothecary Renferrel, The Sepulcher, Silverpine Forest
3. 3
   A Recipe For Death · level 18

   Bring 6 samples of Lake Creeper Moss, 6 samples of Lake Skulker Moss and a Hardened Tumor to Master Apothecary Faranell in the Undercity.

   Pick up: Apothecary Renferrel, The Sepulcher, Silverpine Forest · Turn in: Master Apothecary Faranell, Undercity
4. 4
   The New Plague