"Accio diadem!" Voldemort exclaimed with a feral grin, revelling in a return of the showmanship of his wandless magic; highlighting his own magical mastery. "While our esteemed Engineer has introduced some fun trinkets from the Muggle word, the foundations of our might will always be our magic, which I Lord Voldermort hereby strip from you the unworthy". The crowd watched, as Voldermort refashioned the metal diadem in his hand, imbuing the shiny metal with the potion from the cauldron, before directing the malleable metal towards his prisoner; fired directly at Hermione’s head. The white hot pain assaulted the bound witch, feeling the metal meld irrevocably to her neck, forming a thick seamless collar as unseen metal tendrils worked inwards fusing painfully with the bones of her neck, shooting shards of fire to the base of her skull. Despite the gag in her mouth, a bloodcurdling scream echoed around the hall, until Hermione collapsed into unconsciousness, overcome with pain. She was unaware as the Engineer pressed through the gawking crowds to present his master with an odd metal protuberance, bowing briefly in deference. He joined the Potion Master as the pair mimicked their boss’s earlier actions, except this time the metal conduit was the earlier discarded chains from the captive’s earliest imprisonment.