Question: Who is the subject of the Springheel Saga and was said to have been first sighted in 1837?
Sentence (from "The Springheel Saga"): The third and final series, "The Secret Of Springheel'd Jack", released over 2015 and 2016, features Jenny Runacre and Matthew Kelly, and deals with the 1877 Aldershot barracks incident.
Relevant evidence: No