Benjamin J. Myers 
Nonsuch King [EPUB ebook] 
Book 4

Splinter Tuesday is hungry for power, and he has a daring plan to get it – if he can stay alive!His brother, Box, is fighting for his life on a distant planet.His sister, Chess, is learning to walk between the worlds. Only then will she be ready to take on the evil Twisted Symmetry – and win.But the Twisted Symmetry has plans of its own. Time is running out. Splinter, Box and Chess have never been in more danger.