The third season of Shadowhunters will be the last for the Freeform series.

The fantasy drama, based on Cassandra Clare's Mortal Instruments novels, will end in spring 2019 with the second half of Season 3, with the 12 episodes culminating in a two-hour series finale.

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"We are very proud of Shadowhunters, a series that broke new ground in the genre world and became a fan favorite," the Disney-owned cable network said in a statement. "However, along with our partners at Constantin, we reached the very difficult decision not to renew the show for a fourth season. But, as big supporters and fans ourselves, Freeform insisted on and championed the filming of a special two-part finale that would give devoted fans a proper ending. The twelve episodes will air in spring of 2019."

Debuting in 2016, Shadowhunters follows the adventures of Clary Fray, who discovers on her 18th birthday that she's a human-angel hybrid. As part of the titular Shadowhunters, Clary is drafted into a secret war between angels and demons with Earth as the battlefield. The series is Constantin Films' second adaptation of The Mortal Instruments novels, following the 2013 film The Mortal Instruments: City of Bones.

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Developed for television by Ed Decter, Shadowhunters stars Katherine McNamara as Clary Fray, Dominic Sherwood as Jace Wayland, Alberto Rosende as Simon Lewis, Emeraude Toubia as Isabelle Lightwood, Matthew Daddario as Alec Lightwood, Isaiah Mustafa as Luke Garroway, Alisha Wainwright as Maia Roberts and Harry Shum Jr. as Magnus Bane. The series is scheduled to return in spring 2019 for the second half of its third and final season.