The Detective Library (1919-1920?)

No	Title	Author	Source

15	The House with the Crooked Window	Anon.
17	The Mystery of the Bogus Butler	Anon.

40	The Severed Finger	Anon.	Nipper at St. Ninian's [Maxwell Scott] serialised alongside main Nelson Lee story, reprinted from Boys' Herald
41	The Fifth Notch	Anon.
44	The Vulture’s Twin	Anon.