The Diablo 4 Secret of the Spring quest is one that you can run into while out exploring the snowy plains and gloomy forests of the Fractured Peaks, but it's tricky to overcome without a little help. The quest itself requires you to solve a riddle that you find pertaining to a mysterious mountain spring, but the answer isn't immediately obvious. Here's how to solve the Diablo 4 Secret of the Spring puzzle to get yourself some treasure.
Secret of the Spring riddle solution
The Secret of the Spring quest is found in Kylslik Plateau in the Fractured Peaks. Right next to the Forsaken Quarry dungeon, you'll find a ladder you can climb, and a Discarded Note resting near the platform—pick this up to start the quest. The note contains a riddle, while the quest marker directs you to a nearby mountain spring, so head there across the snowy mountains. The riddle reads:
"Beacon of warmth in winter's embrace, patience rewarded by nature's own grace"
Like many of Diablo 4's other puzzling quests, the answer actually comes in the form of an emote. You need to use the "wait" emote next to the spring. To do this, press E (or up on the D-pad on controller) to open the emote menu. If "wait" isn't already there, you'll need to click customise below and add it to one of the wheels before pressing E again and selecting it to use the emote.
Once you do this, a buried chest springs to the surface that you can open to earn some treasure and complete the quest for the XP.