Word spiral

Starting from 1, fill in the grid in a clockwise direction with four-letter words. The last letter of each word becomes the first letter of the next to reveal the sevenletter key word in the shaded boxes. Keyword clue: Precious stone

1. Young sheep

2. Weblog, in short

3. Virtuous

4. Slightly wet

5. A tube

6. Consumes food

7. Strongbox

8. Revise

9. Very small

10. Scream

11. Plant part

12. Enemies

13. Number work

14. Hotpot

15. Twist out of shape

16. Member of the nobility