An Insurmountable Dawn

They say every ending is a beginning in disguise.
For Dawn Pierce, that disguise looks a lot like disaster. When the life she planned falls apart, she's forced into a new one she never asked for - one that will test everything she believes about love, identity, and belonging.
Because sometimes the life meant for us doesn't start with a choice. It starts with a collapse.

(quick title explanation)
(Describing a "dawn" as "insurmountable" creates a powerful, paradoxical image. It suggests that a new beginning or a potential moment of hope/clarity is, for some reason, impossible to reach, get past, or deal with successfully.
As a book title, the phrase is effective because it is evocative and creates intrigue. It immediately suggests themes of:
Hopelessness or despair (a new day that cannot be reached)
An unchangeable reality or fate
A profound challenge in the face of what should be a natural occurrence.)