“When I learned to fight, I was dying from slow poison,” said Jem. “… And I was, yes, still faster than you.”
Kit laughed. His eyes were Herondale eyes, but his laugh was all his own, mischievous and cynical and a little innocent, despite that.
“Train with me,” said Kit.
“What?” Kit asked anxiously. “Do you … not want to?”
“I said that to somebody once,” said Jem. “A long time ago. He did train with me. And now I’ll train you.”
The Lost World, co-written by Kelly Link:
While at the Scholomance, Ty and Livvy test the limits of Livvy’s ghostly powers, while Jem and Tessa prepare for the birth of their child.
Forever Fallen, co-written by Sarah Rees Brennan
The Jace Herondale who crossed into our world from Thule is torn between his feeling of responsibility to Ash, who is ever-increasing in power, and his desire to take back the life he lost from the Jace of our world, by force if necessary. Meanwhile, in the peaceful countryside of England, Kit Herondale struggles to adjust to a new life and a new family, and to forget Ty.