In contrast to their first meeting, the first-half was a close affair, and the two sides were tied at the conclusion of the half.
Ba's goal, a fine curling effort in the first-half, was his first for Newcastle since last February, having scored 17 goals up to that time.
Horne's fourth first-half penalty was the reward for his side and the Blues' next punishment.
The Bears did not lead after the midway point of the second quarter, though the first half was positively pupil-dilating.
Editor Timothy A. Good has called "Bloodline" the second of two parts – the first half was the season's third episode "The Plateau", which Owusu-Breen and Schapker also co-wrote.
His other interception in this game – also to Levy, in the first half – was the first in his last 111 attempts.
Because of this, the excellent first half was stronger than the second.
If the first half was impressive, the second was cruel.
Played against a soundtrack of "Allams out" from those home fans who had bothered to turn up – the stadium was only two-thirds full – the first half was embarrassingly one-sided.
Watford manager Gianfranco Zola: "The first half was brilliant, the second.
However, where the first half was a squib, the second period was pulsating.
