Stray Soul

Stray Soul is a wolf soul located in Gorgoa: River of Souls in the Maw after players acquire the Intact Rune Codex. Part of the long process to obtain the Bound Shadehound mount, the wolf woul runs the length of the river from southwest to northeast at 100% run speed. Use any and all movement-enhancing abilties to catch up to it, then interact with it to start the petting. The pet spell is not interrupted by movement, so keep up with it until the channel completes:
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Finishing the pet cast grants the Willing Wolf Soul.