by Treasure Hidden in Coldspring Cavern
At the very beginning of Dragon Quest Treasures, you’ll receive a tutorial for locating hidden treasure using your companion’s visions. Shortly after you’ll receive Oozabella’s Vision for the treasure hidden in Coldspring Cavern. With your back to the gate, head straight ahead towards the large glowing tree. The treasure can be found behind it on the left side by the lily pads.
When you approach it, glowing mist will trigger.
Press and hold A to dig the treasure up! You’ll receive a Slime Jewel!
Treasure Hidden in the Pirates’ Stockade
After heading through the tunnel, you’ll reach Admiral Mogsworth at his camp. To leave this camp, interact with the two monsters blocking the path. They will want you to find Shady’s hidden treasure. This treasure can be found behind the pile of boxes near the tunnel’s entrance.
Press and hold A to dig up a Restless Heart.