The Lost Year (Secrets of Neverwood #3)
Libby Drew

But when another anguished soul arrives at Neverwood, Devon can’t hide behind his camera. Nicholas Hardy is certain he saw his runaway son, Robbie, in a photo Devon took of homeless children. Devon knows all too well that a young teenager on the streets doesn’t have many options—and Robbie has been missing for a full year.
Searching for Robbie with Nicholas stirs memories and passions Devon had thought long lost, yet knowing that Nicholas will leave as soon as Robbie is found keeps him from opening himself up to something permanent. Devon must learn to fight for what he wants to keep—his love, and his home.