This little heart is also a puzzle and working padlock in one.
If you're totally stuck the solution is available online, so don't despair!
|Ace of Hearts - Houdini Puzzle Padlock Level 1 Difficulty Brain Teaser|| Sale Price: £9.95
|Professor Puzzle Houdini Puzzle Locks Ace of Hearts||List Price: £12.00
Sale Price: £8.95