Dearest Lars,
There is a trunk in the secret room, near the south window. If you open it, you should find a doll on the top. Please give that to Inga for her birthday. Don't tell anyone where you found it, of course.
Make sure that you share all your school books with her, and please make sure she's learning everything that you've learned. Let me know how she's doing, of course. And Freddy, too. I haven't forgotten him. Make sure they all get hugs, and let me know if they're happy.
Take care of yourself, too.
Fondest love,
Mother