Temple of the Frog: From Blackmoor 1975 to DA2

A location, a supplement and a later module

The archive's Supplement II card describes a ninth printing from 1979. That is useful evidence for a particular copy, not a replacement date for the supplement's original publication. OSR Grimoire's DA2 history identifies the 1975 and 1986 relationship.

Blackmoor existed before this product sequence

The older adventure belongs to the history of Arneson's campaign, not merely to an early attempt at the DA series. The Blackmoor Archives' Temple history connects the location with early play and the figure of Saint Stephen. It also describes a campaign scale in which a formidable defended place should not automatically be treated as a sequence of balanced encounters for a small party. That is a valuable warning against reading every old scenario through the same modern assumptions. An expedition might investigate, negotiate or assemble help before attempting an assault. The number and organization of defenders are information about a place's power, not a promise that the next room is appropriate for whoever walks into it.

Campaign recollections need attribution. The familiar story of a ceramic frog appearing on Arneson's table comes through historical accounts; it should not be mistaken for a rule in DA2. The durable evidence for a referee is the text being used: its defenders, routes and stated mission.

Blackmoor's later relationship with the Known World creates another layer. DA1's publisher description has travelers who believe Blackmoor disappeared thousands of years earlier. That is part of a published adventure premise. It is not a reason to merge every place called Blackmoor on every D&D map into a single uncomplicated timeline.

DA2 gives the expedition a specific person to recover

The preserved DA2 description names Risa Aleford as a captive and explains why her disappearance weakens Blackmoor. The king sends adventurers into the Great Dismal Swamp. Those facts establish an objective with consequences beyond looting a ruin.

For preparation, separate the rescue objective from the route to it. Who can tell the party where to search? What would count as finding the captive? What must be possible after contact for the rescue to succeed? Answers should come from DA2's actual locations and instructions. A party can win a fight while still failing to complete the mission.

Keep one line for information that changes the plan. A route discovered during travel may be more valuable than another combat victory. A decision that delays the party may matter because somebody is waiting to be recovered. These are ways to read the published mission, not additional events this guide adds to the module.

The political framing also changes what a retreat means. Adventurers who return with useful information have done something different from a group that vanishes into the swamp. If you develop consequences beyond those printed, label them in your notes as campaign additions so they do not become remembered claims about the original adventure.

Compare one location without mixing its rules

A useful comparison of the two Temple versions starts with a single place. Put its entry from the supplement beside the later module's treatment and make four separate notes: access, occupants, information available and consequence of disturbance. This is more revealing than matching room numbers that may have different purposes. Next record the expedition assumed by each text. Do not silently replace an earlier mass of defenders with a later statistic block, or carry a later rescue hook backward into the supplement because the name is familiar. Changes in context can matter more than the nominal identity of a villain.

For actual play, choose one rules base. Bring across selected geography or background only after checking what the new campaign needs. A historical comparison can hold two texts open at once; a combat procedure cannot depend on both books simultaneously giving the final answer.

This article identifies the lineage and a comparison method. It does not claim that every keyed area is unchanged or that the modules can be substituted without preparation. The separate Mystara guide addresses borrowing later setting material, while our CM/M guide concerns another set of rules dependencies.

Select a reading copy by the question you want answered

Choose the supplement when studying an early published scenario. Choose DA2 when preparing the 1986 rescue adventure. Read DA1 when the arrival in Blackmoor and the surrounding series become part of your campaign. Keeping those jobs distinct prevents a familiar cover title from doing too much bibliographic work.

For a used DA2, check the tri-fold cover alongside the booklet. For a supplement copy, record its actual printing rather than transferring the date of the first edition to every physical issue. A short inventory can preserve both kinds of history: when the work first appeared, and which artifact is on your desk.