SOLVED. YA Fantasy book : Half fae, dwarf, heroine saves the children who are getting nightmares. [s]

[Srilakshmi]

The heroine is half fae. She had a best friend who died. before she died, she asked the heroine to look after her children (a boy and a girl). The siblings are in the orphanage. Some children in the orphanage started having nightmares and went into deep sleep. If they don't wake up, they might die. The God son of the heroine also fell asleep. Now the heroine sets off a journey to fae world to save these kids. She meets a dwarf in the fae world and together they start to search for the culprit.
The fae king also helps them. Later they finds that the god daughter of the heroine helps the dark fae who put the children into nightmares to save her brother. Heroine and hero goes to a dragon for help and saves the children. This is the first book in its series.

If anyone knows the title or the author, please let me know

[Kris]

Srilakshmi, I moved your request to the "Unsolved" folder because you're looking for one specific book.

[Brenna]

Dreamthief by Tamara Grantham seems to match

[Srilakshmi]

This is it. Thank you so much