Complex sentence: However, he enters Narnia as well, and shortly after searching for Lucy he meets the White Witch who claims to be "The Queen of Narnia" and her dwarf Ginarrbrik.
Split into simpler sentences: However, he enters Narnia as well, and shortly after searching for Lucy. He meets the White Witch who claims to be "The Queen of Narnia" and her dwarf Ginarrbrik.