After getting a fluttery feeling while helping Mouse make valentines for each of their friends, Mole sends her a series of notes and gifts, signing them "your secret valentine."
- ISBN10 0544343530
- ISBN13 9780544343535
- Publish Date 26 December 2017 (first published 3 December 2013)
- Publish Status Active
- Publish Country US
- Imprint Houghton Mifflin
- Format eBook
- Pages 48
- Language English