Peregrine - Wendeberg A.

When hunting monsters, you must be willing to become one.

Gavriel Sévère lost everything in one devastating blow: his position as coroner for a murder he didn't commit, and the use of his legs for one he did. When his wife Olivia vanishes without a word, he believes he's lost her too.
Alone, he drowns in hundreds of letters begging for help - missing children Scotland Yard dismisses as runaways.
Then Olivia returns, haunted and changed, and she recognises what others have missed. Something from her own dark past.
Something that could destroy her.
Now Sévère must choose between the law he once served and the justice it fails to deliver.
For Olivia, there is no choice at all.
When hunting monsters, you must be willing to become one.

Peregrine is a gripping tale of vigilante justice, where a mere whisper separates the hunter and the hunted, and redemption comes at a steep price.