Eventually, the evening came around. Ptricia was costumed up in black t-shirt and trousers, and had packs ready for each of them.<br/><br/>First she pulled out a hockey mask. "Chris, this is the mask you wanted. It's not permanently enchanted, but for the next couple of hours, any blood heading your way, or even the scent of it, will be diverted away. Likewise any blood in your field of vision will appear to be black treacle. It's also got shape changing and self sticking charms, so it'll stay on throughout your size changes. You can also alter the appearance by an thinking about it. I've got similar masks for myself and Reizu, which will filter out the gas we're using. Yours will too, of course."<br/><br/>"We'll approach from the building next door, land on that roof, and I'll have a passive magical scan of any ward defences the building has, as well as active electronics. Our packs have a broad spectrum disillusionment charrm, which will fuzz our appearance on electronics, and make living creatures not notice us. Much less energy intensive and noticable magically than invisibility. I'll fly us accross, once I'm sure no-one will see my true form, while Reizu shadows  down to the car park and sets the explosives Chris' Panzer friends have kindly provided."<br/><br/>"He'll rejoin us on the roof, and we'll rig the gas attack. Then we'll go into our transformed forms and make our entry."