On Halloween, My Boyfriend and Brother Tricked Me into a Haunted House Just to Amuse My Best Friend: all chapters
Chapters 1–3 are free here; the rest of the 3 chapters continue in the official app.
Chapter 4 is in the official app
The free chapters on EditWrx Reads end at chapter 3. Install the official app — it opens On Halloween, My Boyfriend and Brother Tricked Me into a Haunted House Just to Amuse My Best Friend where you left off.