If you like Jeremy Fink and the Meaning of Life by Wendy Mass

 Here are some titles that I think you might enjoy.

 

The author of Jeremy Fink wrote another book that you might enjoy:

A Mango-Shaped Space by Wendy Mass.

Afraid that she is crazy, thirteen-year-old Mia, who sees a special
color with every letter, number, and sound, keeps this a secret until
she becomes overwhelmed by school, changing relationships, and the loss
of something important to her.

 

Tunnels by Roderick Gordon.

When Will Burrows and his friend Chester embark on a quest to find
Will's archaeologist father, who has inexplicably disappeared, they are
led to a labyrinthine world underneath London, full of sinister
inhabitants with evil intentions toward "Topsoilers" like Will and his
father.

 

The 100 Cupboards by N.D. Wilson.

After his parents are kidnapped, timid twelve-year-old Henry York leaves
his sheltered Boston life and moves to small-town Kansas, where he and
his cousin Henrietta discover and explore hidden doors in his attic room
that seem to open onto other worlds.

(Henry is also looking for keys to open secret locks.)

 

So B. It by Sarah Weeks.

After spending her life with her mentally retarded mother and agora
phobic neighbor, twelve-year-old Heidi sets out from Reno, Nevada, to
New York to find out who she is.

 

 

Eggs by Jerry Spinelli.

Mourning the loss of his mother, nine-year-old David forms an unlikely
friendship with independent, quirky thirteen-year-old Primrose, as the
two help each other deal with what is missing in their lives.