diff --git a/docs/sourceMap.md b/docs/sourceMap.md
index 5a7476b1..30b608f8 100644
--- a/docs/sourceMap.md
+++ b/docs/sourceMap.md
@@ -147,6 +147,7 @@ _Support content creators. Only use or include sources that you own._
 | PiP | Peril in Pinegrove | adventure |
 | PotA | Princes of the Apocalypse | adventure |
 | QftIS | Quests from the Infinite Staircase | adventure |
+| RHW | Ravenloft: The Horrors Within | book |
 | RMBRE | The Lost Dungeon of Rickedness: Big Rick Energy | adventure |
 | RMR | Dungeons & Dragons vs. Rick and Morty: Basic Rules | book |
 | RoT | The Rise of Tiamat | adventure |
diff --git a/src/main/java/dev/ebullient/convert/tools/dnd5e/Json2QuteCommon.java b/src/main/java/dev/ebullient/convert/tools/dnd5e/Json2QuteCommon.java
index 11d8a386..113be8f9 100644
--- a/src/main/java/dev/ebullient/convert/tools/dnd5e/Json2QuteCommon.java
+++ b/src/main/java/dev/ebullient/convert/tools/dnd5e/Json2QuteCommon.java
@@ -3,6 +3,7 @@
 import static dev.ebullient.convert.StringUtil.isPresent;
 import static dev.ebullient.convert.StringUtil.joinConjunct;
 import static dev.ebullient.convert.StringUtil.toOrdinal;
+import static dev.ebullient.convert.StringUtil.uppercaseFirst;
 
 import java.nio.file.Path;
 import java.text.Normalizer;
@@ -372,6 +373,12 @@ private String proficiencyPrereq(JsonNode profPrereq) {
                             replaceText(prof.getValue().asText())));
                     case "weaponGroup" -> profs.add(String.format("%s weapons",
                             replaceText(prof.getValue().asText())));
+                    case "skill" -> {
+                        List<String> skills = new ArrayList<>();
+                        prof.getValue().forEach(x -> skills.add(uppercaseFirst(replaceText(x.asText()))));
+                        profs.add(String.format("the %s skill",
+                                joinConjunct(" or ", skills)));
+                    }
                     default -> {
                         tui().warnf(Msg.UNKNOWN, "unknown proficiency prereq %s from %s / %s",
                                 p.toString(), getSources().getKey(), parseState().getSource());
diff --git a/src/main/resources/sourceMap.yaml b/src/main/resources/sourceMap.yaml
index 3b9b1e2a..3b486ec1 100644
--- a/src/main/resources/sourceMap.yaml
+++ b/src/main/resources/sourceMap.yaml
@@ -391,6 +391,9 @@ config5e:
     QftIS:
       name: "Quests from the Infinite Staircase"
       date: "2024-07-16"
+    RHW:
+      name: "Ravenloft: The Horrors Within"
+      date: "2026-06-16"
     RMBRE:
       name: "The Lost Dungeon of Rickedness: Big Rick Energy"
       date: "2019-11-19"
diff --git a/src/test/resources/5e-sourceTypes.json b/src/test/resources/5e-sourceTypes.json
index 788cf433..ba23f8fe 100644
--- a/src/test/resources/5e-sourceTypes.json
+++ b/src/test/resources/5e-sourceTypes.json
@@ -161,6 +161,7 @@
     "NF",
     "LFL",
     "EFA",
-    "CaBoMP"
+    "CaBoMP",
+    "RHW"
   ]
 }
\ No newline at end of file