Dear Aaron: From the author of the sensational TikTok hit, FROM LUKOV WITH LOVE, and the queen of the slow-burn romance!

Some days all you need is a message from a stranger . . .

Ruby Santos knew exactly what she was getting herself into when she signed up to write a soldier overseas.

The guidelines were simple: one letter or email a week for the length of his or her deployment. Care packages were optional.

Been there, done that. She thought she knew what to expect.

What she didn't count on was falling in love with the guy.