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The Lamenting Lighthouse
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The Lamenting Lighthouse


This product is a PDF - if Fantasy Grounds is more your speed, here you go!

If you want to rock both a PDF and the FG version - check out this discounted bundle!



Sven's 2019 Adventure Bundle


"This adventure is a critical hit on almost every single aspect of adventure writing." - Jason B. (Verified Purchaser)

"The Lamenting Lighthouse is nothing less than an amazing piece. With concepts and homages to The Princess Bride, H.P. Lovecraft, Stephen King, and even Pirates of the Caribbean, I absolutely love what Sven has created." - Cameron Day from Comics, Clerics, & Controllers

"Highly Recommended: The Lamenting Lighthouse rates a solid 4.5 stars and makes for a fantastic adventure for any nautical campaign or one-shot." - Anthony Joyce for TT Level Up

"The Lamenting Lighthouse is well written and in such great detail that the NPCs and villains came alive for me immediately. I highly recommend this for a one shot." - Jörg N. (Verified Purchaser)


Welcome to The Lamenting Lighthousea four-hour adventure for 5th-10th level characters, designed for Dungeons & Dragons 5th Edition!


This is an adventure with a nautical theme, heavy undead and horror elements, and mysteries to solve!


One lonely lighthouse shines the way through the rocks and shoals that deny entry to the northern Moonshae Isles. But when the party’s transport approaches, a horrific gale at their backs - no light is in sight... The party must venture ahead of their vessel in a race against the storm to the restore the beacon before their ship is lost. What has befallen the keepers, and what dark secret does the lighthouse hold? Will the heroes prevail, or will they join the lighthouse's lament?


This adventure can easily be inserted into a run-through of Ghosts of Saltmarsh. This one-shot can also serve as a nautical interlude in any on-going campaign where the characters have to take to the sea.


Included with this adventure are:

  • 6 original custom creatures, the dread wraith, the dread wight, the swarm of seagulls, the captain, the rating, and the sailor
  • 12 player hand-outs with notes that shed light on the mystery of the lamenting lighthouse, with a randomization mechanic that ensures a degree of replayability
  • 9 original fleshed out NPCs, including personality traits and roleplaying tips
  • 2 original magical artifacts
  • 7 hand-drawn maps of important locations
  • a story reward and 2 story hooks for continuing the adventure (depending on how the adventure resolves)


Content Warnings: death or dying, horror, mental illness, profanity, violence.


If you catch an error or have questions about running this adventure, feel free to contact me at! For updates on my work, follow me on Twitter @SvenWrites!


If you enjoyed this one, you might also like my other adventures and supplements!


Wolpertinger, Wererat - Well! Cover Old Olga and Young Yvonne Cover Cirrias Gambit Cover WFRoEI YEET!
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Reviews (10)
Discussions (4)
Customer avatar
Olov E March 06, 2020 12:53 pm UTC
I'm translating the journal entries and I'm having trouble with the sixth one. Is the last word of the last sentence breacher? What is that last sentence supposed to mean?
Customer avatar
Sven T March 07, 2020 12:33 pm UTC
That is a mistake on my part, thank you for bringing it to my attention! The word "breacher" is supposed to be "breaker", referring to a heavy wave washing over the island. I have updated the files!
Customer avatar
Olov E March 26, 2020 12:19 am UTC
Thank you for the clarification! :)
Customer avatar
Karen E December 17, 2019 5:05 pm UTC
I purchased this one shot yesterday and have read through it, it is going to be a blast to run as my first one shot! I had a question about one of the NPCs I was hoping someone could answer.
It indicates the quartermaster, Harvey, is a Illuskan human rating. What is a "rating"? It also indicates he knows the cantrip druidcraft, but does not implicitly state he is a druid. There is no character stats for him, other than a blurb in the beginning. Thank you!
Customer avatar
Sven T December 17, 2019 5:23 pm UTC
Hey Karen, I'm glad that you are looking forward to DMing this, I hope you and your players will have great fun!

A rating is essentially a sailor who is not an officer. You can find the stat block for the rating (which I created for this adventure) in Appendix B: Creature Statistics, on page 23 of the adventure. Harvey, the quartermaster, is indeed no druid - he just knows the druidcraft cantrip, which he picked up at some point in his life for its utility in predicting the weather at sea. A bit of additional backstory: this is one of the major reasons Captain Ailmon recruited him! You can think of this feature, mechanically, as a toned-down version of the magic initiate feat.

Let me know if you have further questions, I'm happy to help!
Customer avatar
Karen E December 18, 2019 11:41 am UTC
Thank you! I did indeed find it in the Appendix you mentioned. I overlooked it on my first read through. You were very thorough, which I appreciate.

I'm wondering if you have any advise regarding running this with a cleric in the party who has the turn undead spell? (A lot of undead on the island).

My normal group has been playing together for almost two years (me included, Level 9 - Tiefling Druid). I'm running this one shot for our group as a "gift" to our DM who "just wants to play", so I know pretty well what I'm going to be dealing with, therefore the question regarding the cleric.

I could ask them all to roll new characters and level them to 6 before we meet, but someone may roll a cleric again.

Any thoughts?

Thanks Sven!
Customer avatar
Sven T December 18, 2019 12:05 pm UTC
That's awesome of you to do this for your DM! :D

My advice is to let the cleric have their fun! You are right, there are a lot of undead in this adventure - actually, quite likely too many to turn... ^^ I think you can run a single cleric (or even two) out of uses of turn undead pretty quickly here. I once ran a party with two sorcerers and a wizard out of counterspells with this adventure! Even if they annihilate a few encounters with turn undead, that's okay! Nothing feels better than getting some use out of rather situational abilities, such as turn undead. It's not entirely likely turn undead alone will save them, anyways: it only lasts for 1 minute or until the turned creature takes damage - and it's a small island, not very far for the turned undead to go, they might come back once this 1 minute is up ; ) You could even use this to your advantage with the drowned versions of common undead I use in this adventure: let the turned undead stumble into the foaming see, let the party think they are...See more
Customer avatar
Karen E December 31, 2019 6:38 pm UTC
Hi Sven,

I completed the Lamenting Lighthouse on Saturday. The group had a blast. They ended up going to Seagull Island first (after encountering the Sahuagin and sharks on the way). They jumped off the cliffs several times. I wasn't sure what the water depth would be in a case like this, so I didn't make them take fall damage, and I was so caught off guard I didn't have any of the drowned sailors or other underwater threats interact with them. I don't know why I didn't fathom they would jump off the islands.

Anyhow, the party rolled 6th level characters and not a cleric among them. In fact, they were rather squishy with a Tortle Sorcerer, a Half-elf Warlock, and a Gnome Bard. Overall, they did fairly well, at one point the party jumped off the cliff by the surf cave and the eels attacked, then they misty stepped back up to the Viledel Lighthouse, so I had to coax them back towards the cave!

Thank you for the great content, we had a lot of fun!
Customer avatar
Sven T January 01, 2020 1:29 pm UTC
Glad you had fun! =) You can never account for all eventualities when writing adventures, I think we can learn from your story :D But it sounds like you handled it great!
Customer avatar
Lily N October 06, 2019 1:38 pm UTC
Would it be possible to have a seperate pdf for the maps so they're easier to upload to roll20?
Customer avatar
Sven T October 09, 2019 6:16 pm UTC
I have added a new PDF that contains only the maps, hope it helps and you'll have fun with the adventure!
Customer avatar
Lily N October 17, 2019 7:41 pm UTC
Thank You!
Customer avatar
James C July 07, 2019 1:14 am UTC
Have you thought about converting this to Fantasy Grounds?
Customer avatar
Sven T July 07, 2019 7:47 am UTC
I have no experience with Fantasy Grounds yet, unfortunately, but it seems like an interesting option for the future!
Customer avatar
Sven T February 06, 2020 11:10 pm UTC
It took a while, but the Fantasy Grounds conversion is here now and you can get it at a discount in the bundle linked below!
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File Last Updated:
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This title was added to our catalog on July 06, 2019.