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Arrow: New Photo Revisits Season 1's Biggest Mystery

Arrow final season costume header

Arrow's eighth and final season will somehow offer major ties to the upcoming "Crisis On Infinite Earths" crossover, but much of the plot has been kept under wraps. Previously released photos have hinted at not only the return of deceased characters such as Moira Queen and Tommy Merlyn, but also of old sets like the Queen Mansion.

Now, it seems we can add another location -- and mystery -- to that growing list. On Twitter, star Stephen Amell shared a new Season 8 picture, which features Oliver Queen standing on Lian Yu's beach, holding the bamboo stick that displays Deathstroke's battle-damaged mask.

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Deathstroke's mask, complete with arrow pierced through, was first seen in the series' pilot, and it was the source of a great mystery: what had happened between Oliver Queen and Slade Wilson? Now, whatever is going on in Season 8, it appears we will revisit this popular location -- and era.

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It should be noted that Oliver appears to be wearing the coat he previously wore in Season 2 of the series, when he returned to the island in the present day storyline. That, plus the fact that Lian Yu was destroyed by Prometheus at the end of Season 5, suggests that we may be looking at some sort of flashback... or perhaps time travel.

Returning Tuesday, Oct. 15 at 9 p.m. ET/PT on The CW, Arrow stars Stephen Amell as Oliver Queen, David Ramsey as John Diggle, Rick Gonzalez as Wild Dog, Juliana Harkavy as Black Canary, Katie Cassidy as Black Siren, Katherine McNamara as Mia Smoak, Joseph David-Jones as Connor Hawke and Ben Lewis as William Clayton-Queen.

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