Are these two sentences correctly worded?

Arunika traveled to the site of the Dread Ring in search of Valindra Shadowmatle, an insane lich and the new leader of the Thayan forces in Neverwinter Wood following the death of the sorceress Sylora Salm, and instead found her imp familiar Invidoo and a zombie Sylora bent in half unable to walk. Invidoo wanted his freedom from service to Arunika, who promised to grant it to him if he could find a replacement for himself who was familiar with Drizzt.