Modron (Judges Guild)

Modron is an adventure for fantasy role-playing games published by Judges Guild in 1978.
Plot summary.
"Modron" is a scenario describing the village of Modron and a nearby underwater adventure, each with a large map. It includes both village and underwater encounters.
Modron is a water goddess whose city was somehow preserved in a battle between her worshippers and the worshippers of her rival god, Proteus. Proteus' people's homes were destroyed, but a new city was built on top of the ruins. Explorers in the city can find a myriad of wealth and adventures. Several characters are sketchily described for the players, if they choose to use them.
Publication history.
"Modron" was written by Bob Bledsaw and Gary Adams, and was published by Judges Guild in 1978 as a 16-page digest-sized book with a blue cover and two large maps. Judges Guild published a second edition in 1980.
A listing of cumulative sales from 1981 shows that "Modron" sold over 15,000 units.
Reception.
Elisabeth Barrington reviewed "Modron" in "The Space Gamer" No. 30. Barrington commented that "The graphics on the maps are excellent. The ideas presented in the background are interesting and novel, to some extent. Clarity is the key word in this module. Whatever is described is organized and easy to read." However, she added "BUT there is not much described. In each room or place the characters go, the DM must quickly invent a few things to flesh out the descriptions given in the booklet. There are people in the places, and a couple of items, and that is all that is given. No room descriptions, no special traps or interesting things that happen unless you make them up as you go along; just a person or monster and some items. There are some bad typos in the booklet, making things a little hard to figure out at times, but the great organization of the book makes up for that one little problem." Barrington concludes her review by saying, "If you are the type of DM who wants the bare minimum provided for your campaign, this is for you. But you might find that [the price] is a little high to pay for descriptions of people. It is fun to play, and there are some new things to find, but I do not think it is worth the price."
William Fawcett reviewed "Modron" in "The Dragon" #44. Fawcett commented that "This set is inexpensive and has some good expansions of ideas mentioned, but not detailed, in earlier Guild products. "Modron" could be easily included in a campaign that included nothing else from the Guild."