Take the Book of Aquor, the Silvery Claws, and the Irontree Heart to Tanaris.

Use the Book of Aquor to summon Aquementas.

After you have the completed totem, take it to J.D. Collie in Marshal's Refuge.

Chain

It's a Secret to Everybody → It's a Secret to Everybody → It's a Secret to Everybody → The Videre Elixir → Meet at the Grave → A Grave Situation → Linken's Sword → A Gnome's Assistance → Linken's Memory → Silver Heart → Aquementas → Linken's Adventure → It's Dangerous to Go Alone