For Book 3 of The Night's Dawn Trilogy

Quinn Dexter (#1 bad guy, self-possessed, nut-ball cultist) is on his way down to Earth.

Louise Cavanaugh (pregnant with Joshua Calvert's child), her sister Genevieve, & Fletcher Christian (possessor), in hot pursuit of Quinn, have been arrested in Earth orbit.

Al Capone (possessor) and Kiera (possessing Marie Skibbow) have joined up.

Marie's father (recently dis-possessed) is chasing after her in the company of a number of others (mostly kids) who wished to join Kiera's Deadnights.

The planet Ombey has a peninsula called Mortonridge in the possession of the Possessed (some of whom aren't all that bad).

The planet Norfolk has disappeared from the universe, taken by the Possessed.

In Valisk (habitat), Dariat, with the help of Valisk's personality, Rubra, has betrayed/escaped Kiera. Valisk disappears.

The planet Nyvan go boom. Richard Keaton (the "data security expert") go poof. (?)

Calvert & Co. barely escape Capone's baddies, using the Alchemist in the process.

Capone's fleet has unsuccessfully attacked Tranquillity (habitat) because?

Tranquillity disappeared with all aboard, including Joshua's girlfriend, Ione, the Lord of Ruin.

Syrinx and her ship, half-Voidhawk/half-Blackhawk Oenone, who were defending Tranquillity, have also disappeared.

Joshua Calvert, with his half-brother Liol, Monica (the Adamist agent), Samuel (the Edenist agent), and Alkad Mzu (the scientist who created the Neutronium Alchemist) have just arrived at Tranquillity's former location in the Lady Macbeth.

There are, of course, lots of other characters and happenings, but this'll get you started.