To open lock 5 on clasp
4 digit code
 
  1. Use tart tins, stove and heat source (light)

  2. Use the 15 wood discs

  3. Use discs to spell 4 words - each color spells a word

  4. Stack the tins by spelling one of the words - stack letter on letter to spell the word

  5. Line up the markings on the edge of the tin

  6. Place the stacked tins on the stove with the light underneath

  7. Read the number from the surface

  8. Repeat 3 times (once for each word)

  9. The sequence of the numbers are in order of magnitude of the words in relation to each other