
However, the "Lucas" who answers is still possessed by Dodge, who is assumedly trapped in this universe as long as the Black Door is closed. Ellie believes the Echo Key allows you to summon an "echo" of a loved one by calling their name into the well, and hypothetically that's what it does. Years later, Ellie is still heartbroken over Lucas, so she uses her Echo Key at the Wellhouse - the only place where the key works - to try and bring him back. In Episode 9, Ellie tells the Locke kids that her boyfriend Lucas was possessed by Dodge after Rendell opened the Black Door in the '80s, and after the possessed Lucas murdered two of their friends, Rendell was forced to kill him.

Though it's not mentioned much, the Echo Key is really the key that sets everything into motion, as it's the Echo of Dodge that convinces Sam Lesser to shoot Rendell Locke three months before the start of the show. Here's a breakdown of the ones we've seen so far.
#Locke and key keys series#
In an interview with Syfy, Locke & Key comics writer Joe Hill said that "the show and the comic are almost like a DNA helix" and that the Netflix series is a "gateway to a larger story." This means that fans of the comics can expect the show to introduce both keys they're familiar with and ones exclusive to the show. In total, there are over 30 keys introduced in the comics, each with their own unique ability. The keys are made out of "Whispering Iron," a metallic substance that the demons turn into if they pass through the Black Door (the Omega Key door) but do not immediately possess a human host.

The show doesn't delve much into the keys' history, but in the Locke & Key: Clockworks comic, it's explained that the keys were crafted by Benjamin Locke during the Revolutionary War.
#Locke and key keys how to#
And considering Season 1 ends with the Locke kids' demon foe (unknowingly) still alive, it's more important than ever that they figure out how to use the keys - and ideally, find some more. The show is just as much about figuring out what all the keys do as it is about trying to keep said keys out of the hands of Dodge. One of the central characters in Locke & Key is Keyhouse Manor itself, the ancestral home of the Locke family where magical keys and doors abound.
