Arrow -- "Haunted" -- Image AR404A_0093b.jpg -- Pictured (L-R): Katie Cassidy as Laurel Lance and Stephen Amell as Oliver Queen -- Photo: Katie Yu/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404A_0114b.jpg -- Pictured (L-R): Stephen Amell as Oliver Queen and Katie Cassidy as Laurel Lance -- Photo: Katie Yu/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404A_0121b.jpg -- Pictured: Katie Cassidy as Laurel Lance -- Photo: Katie Yu/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404A_0166b.jpg -- Pictured: Willa Holland as Thea Queen -- Photo: Katie Yu/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404A_0177b.jpg -- Pictured: Caity Lotz as Sara Lance and Willa Holland as Thea Queen -- Photo: Katie Yu/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404A_0208b.jpg -- Pictured: Caity Lotz as Sara Lance -- Photo: Katie Yu/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404A_0213b.jpg -- Pictured (L-R) : Stephen Amell as Oliver Queen and Katie Cassidy as Laurel Lance -- Photo: Katie Yu/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404A_0225b.jpg -- Pictured (L-R) : Willa Holland as Thea Queen, Stephen Amell as Oliver Queen and Katie Cassidy as Laurel Lance -- Photo: Katie Yu/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404A_0236b.jpg -- Pictured: Caity Lotz as Sara Lance -- Photo: Katie Yu/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404A_0273b.jpg -- Pictured: Willa Holland as Thea Queen -- Photo: Katie Yu/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404B_0027b.jpg -- Pictured (L-R) Matt Ryan as Constantine, Paul Blackthorne as Detective Quentin Lance, Stephen Amell as Oliver Queen and Katie Cassidy as Laurel Lance -- Photo: Cate Cameron/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404B_0050b.jpg -- Pictured (L-R) Emily Bett Rickards as Felicity Smoak and Matt Ryan as Constantine -- Photo: Cate Cameron/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404B_0053b.jpg -- Pictured: Matt Ryan as Constantine -- Photo: Cate Cameron/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404B_0060b.jpg -- Pictured (L-R): Matt Ryan as Constantine, Stephen Amell as Oliver Queen, Paul Blackthorne as Detective Quentin Lance and Katie Cassidy as Laurel Lance -- Photo: Cate Cameron/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404B_0148b.jpg -- Pictured: Willa Holland as Thea Queen -- Photo: Cate Cameron/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404B_0154b.jpg -- Pictured: Emily Bett Rickards as Felicity Smoak -- Photo: Cate Cameron/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404B_0177b.jpg -- Pictured (L-R): Stephen Amell as Oliver Queen, Emily Bett Rickards as Felicity Smoak and Willa Holland as Thea Queen -- Photo: Cate Cameron/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404B_0182b.jpg -- Pictured (L-R): Willa Holland as Thea Queen, David Ramsey as John Diggle and Stephen Amell as Oliver Queen -- Photo: Cate Cameron/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404B_0183b.jpg -- Pictured (L-R): Willa Holland as Thea Queen and David Ramsey as John Diggle -- Photo: Cate Cameron/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404B_0190b.jpg -- Pictured: David Ramsey as John Diggle -- Photo: Cate Cameron/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404B_0196b.jpg -- Pictured (L-R) Katie Cassidy as Laurel Lance and Matt Ryan as Constantine -- Photo: Cate Cameron/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404B_0197b.jpg -- Pictured: Matt Ryan as Constantine -- Photo: Cate Cameron/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404B_0209b.jpg -- Pictured: Stephen Amell as The Arrow -- Photo: Cate Cameron/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404B_0226b.jpg -- Pictured (L-R): Stephen Amell as The Arrow, Katie Cassidy as Black Canary and Matt Ryan as Constantine -- Photo: Cate Cameron/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404B_0233b.jpg -- Pictured: Stephen Amell as The Arrow -- Photo: Cate Cameron/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404B_0241b.jpg -- Pictured (L-R): Stephen Amell as The Arrow, Matt Ryan as Constantine and Katie Cassidy as Black Canary -- Photo: Cate Cameron/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404B_0312b.jpg -- Pictured (L-R): Matt Ryan as Constantine and Stephen Amell as The Arrow -- Photo: Cate Cameron/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404B_0351b.jpg -- Pictured (L-R): Matt Ryan as Constantine and Stephen Amell as The Arrow -- Photo: Cate Cameron/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404B_0406b.jpg -- Pictured (L-R): Katie Cassidy as Black Canary and Stephen Amell as The Arrow -- Photo: Cate Cameron/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404B_0409b.jpg -- Pictured: Matt Ryan as Constantine -- Photo: Cate Cameron/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404A_0029b -- Pictured (L-R): Willa Holland as Thea Queen, Stephen Amell as Oliver Queen and Emily Bett Rickards as Felicity Smoak -- Photo: Katie Yu/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404A_0044b.jpg -- Pictured: Emily Bett Rickards as Felicity Smoak -- Photo: Katie Yu/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.

Arrow -- "Haunted" -- Image AR404A_0082b.jpg -- Pictured (L-R): Willa Holland as Thea Queen and Stephen Amell as Oliver Queen -- Photo: Katie Yu/ The CW -- © 2015 The CW Network, LLC. All Rights Reserved.