Maria V. Snyder said this quote
“ Why did Mother ask you to help me rescue Gelsi? I asked Leif.She thought I could assist you in some way. Instead, I had tried to-Kill me? You can join the 'I Want to Kill Yelena Guild.' I hear they have sixmembers in good standing.Valek is president since he had wanted to kill me twice.--Yelena to Leif ”