Lime Tree Library · until 31 Oct

Code: 1 · 16 · 16 · 12 · 5 · 19

The key is simple: A = 1, B = 2, C = 3… You'll find the numbers at spots around the park.

1A
16P
16P
12L
5E
19S

Correct!

Say the password at the desk and you'll get a bookmark and an apple from our garden.