As Peridot leaves, Strange moves over towards the computer to pick up the pencil and notepad. Unfortunately, he's walking a bit closer towards the staircase as he does so. Miko might want to get the heck out of dodge because it is only by the convenience of plot and Strange's own obliviousness that he hasn't spotted her.

Instead, Strange sits down next to the computer for a moment to scribble out the spell in handwriting that's definitely readable, but also atrocious. He's still writing down the incantation when he hears the water slosh as Peridot returns.

"Good! Set that down on a clear space like a coffee table or something and place the feather to the left of it. I've almost finished writing down your part..."