Are these two sentences worded in the best way?

After an attack by ghostly spirits, Gilthas’s illness increased, and his followers wondered if Lady Sa'ida, a powerful cleric of Elir-Sana (Mishakal), would be able to help cure the ruler as well as lend advice on dealing with the spirits. While Kerianseray departed immediately for Khur to retrieve the priestess, Favaronas was visited by spirits telling him how he might be able to stop Faeterus.