Second book of my holiday reads jumped to the start of the Siege of Terror with John French's The Solar War.
For those of us that have been reading and listening to every Black Library release for Horus Heresy it has been a long but suitably long time for it to reach its climax with the Siege of Terra. The Solar War is the first of what is a 5 part series so far. Can the Loyal Legions of the Emperor stop on the on rushing horde of the Warmaster Horus.
The book starts with the forces of the Emperor desperately preparing for the on rushing forces of the Warmaster, as the book unfolds it is a also a delaying tactic to allow the Ultramarines reach Terra and join the defence. Primarch Rogal Dorn has been given control of the defences of Terra which start at the first sphere at Pluto under the disgraced Sigismund, whilst Jubal Khan of the White Scars looks to intercept any secondary assualt.