Jumping right in, Harry is working with Thomas solving cases and getting annoyed at their living arrangements. Movera blackmails Harry in order to find the Word of Kemler. This causes Harry to dig into Kemler's past. Necro-Bob has some nice things to day about how to get more power and was once owned by Kemler.
Harry investigates odd deaths in the area and Butters gets involved in the fight. Necromancers show up in Chicago hunting the word but Harry and Butters find the trail first. Harry actually gets a date but it's a bust. Harry uses Mortimer to help track Necromancer activity and follows the bad guys.
Calling in the White Council, Harry pulls out all the stops to find a way to stop this ritual that will turn one of the Necromancers into a mini god. When the council arrives, they have suffered a recent defeat at the hands of the red court. Five wizards show up to help Harry and he himself is drafted to be a warden.
While tracking down the word, Harry comes across Sheela who turns out to be the subconscious presence of Lashel. Realizing this, Harry sees how his actions have looked "off" to those around him as he has been interacting with someone who doesn't exist to others.
Armed with new clarity and the word, Harry uses Lashel to translate and understand the Word of Kemler. He uses Necromantic energy to animate Sue the T-Rex and take Butters to help stop the dark hallow. Bob comes to the rescue and takes control of Sue at a pivotal moment disrupting the ritual and causing it to fail. He makes it out alive even if he is a little worse for wear.
"The door is ajar"