Prologue: Loss

"We'll help you," He nodded, finally allowing himself to get over his guilty conscious and look Ursula in the eyes, "No parent should be separated from their child, there is no pain greater than it." Recognition flashed over her features, a look that made a knot grow tight in the pit of his stomach, and she let her face drop blank. She knew he understood.

Or,
Rumplestiltskin took more than just Milah and a hand from Killian and soon the discovery that his son is alive will change the pirate's world forever.

DESCENDANTS/OUAT CROSSOVER