The Black Guard were sent out to search of Barbie and her friends and to bring them to the palace of The Cuckoo.
At one point the Black Guard came close to finding them, but Barbie, Primando, Luz and Wilkinson hid under a snow drift and were able to avoid detection.
Eventually the Black Guard captured Barbie who was then delivered to the Cuckoo.
The Black Guard appears in several parts throughout the A Game of You Storyline. This particular member of The Black Guard appears in Sandman # 35 on page 7 in panel 3.
This is a fantastic portrait from Jeremy. He did an awesome job capturing both the menacing appearance and the frightening aspects of this character. The blackness inside the helmet with the eyes staring out is quite haunting.