diff --git a/website/client/src/assets/css/sprites/spritesmith-main.css b/website/client/src/assets/css/sprites/spritesmith-main.css
index c2c9f08756..8a5531760f 100644
--- a/website/client/src/assets/css/sprites/spritesmith-main.css
+++ b/website/client/src/assets/css/sprites/spritesmith-main.css
@@ -27905,6 +27905,31 @@
   width: 114px;
   height: 90px;
 }
+.back_mystery_202305 {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/back_mystery_202305.png');
+  width: 114px;
+  height: 90px;
+}
+.headAccessory_mystery_202305 {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/headAccessory_mystery_202305.png');
+  width: 114px;
+  height: 90px;
+}
+.shop_back_mystery_202305 {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/shop_back_mystery_202305.png');
+  width: 68px;
+  height: 68px;
+}
+.shop_headAccessory_mystery_202305 {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/shop_headAccessory_mystery_202305.png');
+  width: 68px;
+  height: 68px;
+}
+.shop_set_mystery_202305 {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/shop_set_mystery_202305.png');
+  width: 68px;
+  height: 68px;
+}
 .broad_armor_mystery_301404 {
   background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/broad_armor_mystery_301404.png');
   width: 90px;
diff --git a/website/common/locales/en/gear.json b/website/common/locales/en/gear.json
index 6c7ba8a703..dde67616f2 100644
--- a/website/common/locales/en/gear.json
+++ b/website/common/locales/en/gear.json
@@ -2717,6 +2717,8 @@
   "backMystery202301Notes": "These fluffy tails contain ethereal power and also a high level of charm! Confers no benefit. January 2023 Subscriber Item.",
   "backMystery202302Text": "Trickster Tabby Tail",
   "backMystery202302Notes": "Anytime you wear this tail it's sure to be a frabjous day! Callooh! Callay! Confers no benefit. February 2023 Subscriber Item.",
+  "backMystery202305Text": "Eventide Wings",
+  "backMystery202305Notes": "Catch the sparkle of the evening star and soar to strange realms on these wings. Confers no benefit. May 2023 Subscriber Item.",
 
   "backSpecialWonderconRedText": "Mighty Cape",
   "backSpecialWonderconRedNotes": "Swishes with strength and beauty. Confers no benefit. Special Edition Convention Item.",
@@ -2928,6 +2930,8 @@
   "headAccessoryMystery202212Notes": "Magnify your warmth and friendship to new heights with this ornate golden tiara. Confers no benefit. December 2022 Subscriber Item.",
   "headAccessoryMystery202302Text": "Trickster Tabby Ears",
   "headAccessoryMystery202302Notes": "The purr-fect accessory to set off your enchanting grin. Confers no benefit. February 2023 Subscriber Item.",
+  "headAccessoryMystery202305Text": "Eventide Horns",
+  "headAccessoryMystery202305Notes": "These horns glow with reflected moonlight. Confers no benefit. May 2023 Subscriber Item.",
   "headAccessoryMystery301405Text": "Headwear Goggles",
   "headAccessoryMystery301405Notes": "\"Goggles are for your eyes,\" they said. \"Nobody wants goggles that you can only wear on your head,\" they said. Hah! You sure showed them! Confers no benefit. August 3015 Subscriber Item.",
 
diff --git a/website/common/locales/en/subscriber.json b/website/common/locales/en/subscriber.json
index 3708259a86..df5f49cb68 100644
--- a/website/common/locales/en/subscriber.json
+++ b/website/common/locales/en/subscriber.json
@@ -149,6 +149,7 @@
     "mysterySet202302": "Trickster Tabby Set",
     "mysterySet202303": "Mane Character Set",
     "mysterySet202304": "Tiptop Teapot Set",
+    "mysterySet202305": "Eventide Dragon Set",
     "mysterySet301404": "Steampunk Standard Set",
     "mysterySet301405": "Steampunk Accessories Set",
     "mysterySet301703": "Peacock Steampunk Set",
diff --git a/website/common/script/content/gear/sets/mystery.js b/website/common/script/content/gear/sets/mystery.js
index 7d44bfa83d..0800c2363d 100644
--- a/website/common/script/content/gear/sets/mystery.js
+++ b/website/common/script/content/gear/sets/mystery.js
@@ -99,6 +99,7 @@ const back = {
   202206: { },
   202301: { },
   202302: { },
+  202305: { },
 };
 
 const body = {
@@ -233,6 +234,7 @@ const headAccessory = {
   202212: { },
   202205: { },
   202302: { },
+  202305: { },
   301405: { },
 };