Translation
When I am crossed, I pass with a cover and boldly sweep both your arms like this. And I put this thrust in your face. And if I advance my left foot, I can bind both your arms. Or else, in the next play that comes after me I grab you. That is, I bind you at the sword and hold the hilt.
Explanation
In this play, you find yourseld in the same position as the 3rd scholar of sword in one hand, although you arrive here by a different path.
From the master play, which leaves you both crossed in the middle with the right foot forward, step through with your left foot to close with your opponent. As you step, make a hooking block with your left hand. Move your forearm in a tight arc which sweeps across the front of your body, leading with the thumb. As you make contact with your opponents right wrist, your hand is ready to roll your hand over into a grab. Simultaneously raise your right hand into posta fenestra . This is the position shown.
Having arrived at this point, Fiore gives us three options.
Firstly, you can hold your arms reasonably still and pivot your hips anticlockwise. As you complete the grab on your opponents right hand, this will simultaneously pull their sword off to your left and drive the point of your own sword into their face.
Secondly, by making a quick shuffle step, moving your back foot then your front, you can step to the outside of your opponent. As you do so, spiral your left arm from the inside, over the top of your opponents elbow, and then lock your arm close to your body. It will feel like making the start of a middle bind in the way it slides over the arm. You will find yourself in a very similar situation as the 8th scholar of the 3rd master of sword in two hands, except that your sword point will be facing forward.
Thirdly, you can progress to the 6th scholar.