(W) Geno Salvatore, R. A. Salvatore (A) David Baldeon (CA) Steve Ellis. BIRTHRIGHT! Tierflin and Doum'weille are half-Drow siblings* locked in competition for the ownership of the bloodthirsty sword Khazid'hea-the Cutter! Their father* the Drow renegade Tos'un-a veteran of battles against the Kingdom of Many-Arrows-is forced to choose his heir... but what does the powerful sword have to say on the subject?