i adore this game! spent the past few hors trying to 100% it but can't find the 10th or 14th phone number :( also, the secret ending, do you get that after completing the game? thank youuu
Both these numbers can be found in the Forbidden Garden wares storage.
The secret ending is connected to the bottom right item on the first page of pockets collectibles. If you have it already, then you've seen the ending, and if not – it's a follow-up to the green apple quest.