The Lurker at the Threshold by H.P. Lovecraft (Cthulhu Horror Vintage Paperback 1973)

Ambrose Dewart is the heir to the fortunes of his illustrious forebears. Having sampled the wide world and its pleasures, it's now time to retire to the ancestral estate deep in the rolling hills of Massachusetts. At once he sets to work refurbishing the dark rooms, clearing the cobwebs and brightening the foreboding atmosphere. That's when he stumbles upon an old document handed down from a great-grandfather of sinister reputation. On it reads the ominous injunction:

Never invite him that lurks at the threshold!

But this caution does not suppress Dewart's inquisitive spirit...not even when fantastic, ethereal powers are near at hand, striving to resume their earthly dominion...

If it is convenient for me and you would like to collect then I will set up a handover meeting. I do not travel outside Ballymun under any circumstances. I will give clear location instructions for pick up in PM if offer is accepted. Offers below my asking price will be ignored.

No Swaps.
No Haggling (On site or at meeting place).
No Combined Offers, Deals or Discounts.
Payment by Cash or Revolut.
P&P 4 Euros Extra.

The Horror in the Museum by H.P. Lovecraft
https://www.adverts.ie/fiction/the-horror-in-the-museum-by-h-p-lovecraft-cthulhu-mythos-horror-vintage-paperback-1975/35761882

Closed Casket by Sophie Hannah
https://www.adverts.ie/fiction/closed-casket-by-sophie-hannah-hercule-poirot-agatha-christie-murder-mystery-paperback-2016/35211869

The Tomb and Other Tales by H.P. Lovecraft
https://www.adverts.ie/fiction/the-tomb-and-other-tales-by-h-p-lovecraft-cthulhu-horror-vintage-paperback-1975/36247823

The Historian by Elizabeth Kostova
https://www.adverts.ie/fiction/the-historian-by-elizabeth-kostova-horror-mystery-paperback-2005/28594325