Parkinson fired United into an early lead at The Valley with just under quarter of an hour played, but Daniel Kanu equalised for the Addicks before the break, beating the impressive Aidan Harris who had earlier denied Karoy Anderson and Henry Rylah.

Graeme Carrick's youngsters then fell behind when Toby Bower struck for the hosts with 51 minutes on the clock but just before the hour mark Parkinson grabbed his second of the evening to haul the Magpies level.

And it got even better for the visitors 20 minutes from time when Emerson netted what turned out to be the winner when the ball fell his way in the penalty box.

Emerson's strike, in the end, was enough to make the difference and take Carrick's side through to the fourth round, though United did have to withstand a late scare when Ralfi Hand struck the upright in the dying seconds.

Newcastle United Under-18s: Aidan Harris, Lucas Cooper (Carter Milmore), Dylan Charlton, Rory Powell, Ciaran Thompson, Harry Powell, Darren Palmer, Anthony Munda, Ben Parkinson, Shaun Mavididi (Thomas Bryant), Johnny Emerson.

Subs not used: Taylor Ross, Luke Craggs, Logan Watts, Sean Neave, Joe Brayson.