Cold Wars 2018 game - A Dead Man in Deptford

I am going to be running a game at the Cold Wars convention in a couple of weeks.  Here's the description:

An arcane civil war is being waged in Elizabethan England. Playwright/spy/magician Kit Marlowe has just been killed, ostensibly in argument over a tavern bill.  But he really died for writing a work of magical dramaturgy that would open the door to another dimension.  Various court factions are now racing through the dark streets of London’s notorious theatre district to find the manuscript.  Who will find it first?

The game is set in the Soutwark region across the Thames from London:

This will use a modified version of the Frostgrave/Ghost Archipelago rules. Since this is a multi-player game, the activation methods will be simplified and the warbands will be smaller with the main characters having fewer spells/abilities than in regular FG/GA.  Each party will be composed of one "hero" - having 3-4 heritor abilities from GA, one magic user - having 3-4 spells from FG or GA, and four minions.  There will only be 2 treasures, a manuscript of Doctor Faustus that allows a portal to Hell to be opened and an ancient tome that teaches one how to create such dramaturgical manuscripts.  The treasures will be hidden in the Rose Theatre or the Garter Inn.

I have the game listed for eight players but could accommodate up to 15. Here's just a few of them

The Lord Chamberlain's Men, led by Thomas Kent (actually Viola De Lessups in male disguise) and the sigilist Will Shakespeare

 The School of Night, minions of Sir Walter Raleigh, led by Captain Lawyrence Kemys and necromancer Edward Kelley

The Lord Admiral's men, under the direction of the famed actor Ned Alleyn and theatre owner/illusionist Philip Henslowe

 The representatives of Her Majesty, swashbuckling Sir Geoffrey Thorpe and Vine Warden Lady Blandistock (after all, the Queen does love her garden.)

The Puritans, led by Solomon Kane and the Reverend Fear-the-Lord Greenwood.

I did a play test with my regular group that turned out quite well, lots of havoc and back-stabbing coupled with demon appearances and explosives.  A couple of moments during the game:

With Lady B and the Puritans forming an alliance, quick access to Marlowe's chamber at the Garter was achieved thanks to the lady's bramble growing skill.

A difficult fight in tight quarters

Meanwhile, an imp has appeared in "heaven" the staging area directly above the main stage

There's a slightly bigger problem on stage

Explosive are good for getting rid of demons but there may be some unexpected complications

Theatre critics: "I thought that was all a bit predictable."