Are these sentences properly worded?

Gromph magically transported to the surface with Tos'un and Doum'wielle to witness the Darkening, but he soon had to depart for Gauntlgrym. When Zeerith arrived in the fledgling Xorlarrin city, she was met by Quenthel and Gromph, who introduced her to Dahlia and revealed that the elf was now the Matron Mother of House Do'Urden.