watch 01:35 The Loop (Movies) Do you like this video? This article is a stub and needs more information. Please help by expanding it. The Ruby Heart's Stone or just Heart's Stone, is a red jewel that once belonged to Valhallarama, and is one of the King's Lost Things. Contents[show] History Trivia Gallery Appearances Site Navigation Objects of King's Lost Things Dragon Jewel • Endeavour • Key-That-Opens-All-Locks • Roman Shield • Ruby Heart's Stone • Ticking Thing • Toothless Weapons Axe of Doom • Endeavour • Flashcut • Heartslicers • Invincible • Mr. Pointy • Number Six Sword • Stretchapoint • Swiftpoint Scaremaker • Stormblade Wearables and Accessories Black Star • Dragon Basket • Dragon Gear • Hiccup's Fire-Suit • Hiccup's Viking Helmet • Saddle Ships The American Dream • The American Dream 2 • The Endless Journey • The Hopeful Puffin • Viking Longship Other Big Drums • Dragon Nip • Grimbeard's Shield • How to Speak Dragonese • How to Train Your Dragon • Old Wrinkly's Cures for Common Illnesses • Roman Observation Balloon • Scare-away-the-big-sea-creatures-and-keep-the-boat-from-sinking-machine Retrieved from "https://howtotrainyourdragon.fandom.com/wiki/Ruby_Heart%27s_Stone?oldid=318247" Categories: Article Stubs Objects Book Objects Hiccup's Gear (Books) How to Twist a Dragon's Tale How to Steal a Dragon's Sword How to Seize a Dragon's Jewel How to Betray a Dragon's Hero How to Fight a Dragon's Fury King's Lost Things Community content is available under CC-BY-SA unless otherwise noted.