Ultimately, it was thanks to Astarion's careful observation that they spotted the Shadow Druid symbol hidden in the cracks of a withered ancient tree. Prying open the fissure, they found a neatly rolled piece of parchment tucked inside.
Ethemon opened it and smiled.
Kahga:
Olodan has reported your progress to me. The Rite of Thorns has begun, and I am most satisfied. I will soon set out from the Cloakwood for Baldur's Gate. If you need further assistance from my enclave, you had best open the gates now.
Chapter 22