Series
El libro de bolsillo; Biblioteca de fantasía y terror; 8166
We don't know whether this one is finished.
Nobody has confirmed the status of this series yet. That's a gap in our data, not a verdict on the books.
1 book here · 1895
Publication order
This is publication order — nobody has confirmed a different reading order for this one yet.
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The Three Impostors
1895 · Arthur Machen