Always, Clementine
by Carlie Sorosiak (Goodreads Author)
3.5 out of 5 stars
Clementine is a lab mouse. A genetic experiment has given her super-intelligence and she does her best to solve every maze and puzzle that the team of scientists give her. Clementine befriends a chimp named Rosie in one of the lab cages. When a scientist with a guilty conscience sets Clementine free, she begins a wild journey to prove her worth and hopefully save Rosie from the lab too. In the meantime, Clementine writes letters to Rosie (which are never written or posted) and tells Rosie all her adventures.