My WAG on the what went down in my best guess timetable
1. The Wvamps release the "How To" info to Bram Stoker causing the Blamps (Black Court Vamps) to be almost wiped out. Dracul carries a grudge.
2. Mauvra makes a deal with Bianca to train her in magic so she can assend, kill Dresden, etc, etc in exchange for the Ramps help in wiping out the Wamps. This didn't turn out so well for Bianca.
3. Harry gets the Word and gives it to Mauvra. Que sinister foreboding music.
4. Lara hires Vadderung and Valkyrie, learns the Blamps have something going on as pay back. One-Eye tells her the best person to help against that is Dresden.
5. Lara calls in her markers with Mab to have use of the Winter Knight with an option of retaining him long term. The remaining 2 favors are up to Harry and Lara to work out.
6. The Thomas assassination attempt creates problems in Lara's plans.
7. Poorly crafted and executed (Mab's opinion) rescue puts Winter in a very bad light with the Accorded Nations. Molly, checking up on Harry's negotiations with Lara, finds out that they are in fact bull riding in the exercise room. This triggers Molly's Mantel with jealousy but more strongly territorialism. After all that is Winter's (her) Knight. Three nations (Mab, Odin, Ferrovax) see the escape, Mab is NOT impressed.
8.Everyone survives the battle and Lara says she wants the Winter Knight's service (not marriage) going forward but leaves too much wiggle room for Mab.
Up next, a subplot of the Blamps attacking the Wamps. Harry, the betrothed, helps his future bride as is required but violates Council of Weasels, er, Wizards rules and they order his execution.