The Scent of Danger — Abie Longstaff

The second book in The Trapdoor Mysteries, a series about Tally, a code-breaking, animal-loving servant girl and her best friend, a squirrel named Squill, who solve mysteries with the help of a secret library...

Orphan Tally is the servant girl at Mollett Manor - and she''s also the Secret Keeper of the magical library hidden beneath a trapdoor, underneath the manor''s grounds. Along with Squill the squirrel, she uses the enchanted books to solve crimes. So when Lady Mollett''s new puppy, Widdles, is kidnapped, Tally and Squill head straight to the library. But will they be able to catch the dognapper or is it already too late?