Freeform's TV adaptation of Cassandra Clare's "Mortal Instruments" novels is back for another season. "Shadowhunters" season 2 premiered last Monday, Jan. 2, and it is back with twice the action and intensity.

Fans of the books would know that the parabatai bond is a strong kinship shared between two shadowhunters. This will be witnessed in the second season when Jace (Dominic Sherwood) will be separated from Alec (Matthew Daddario), wherein the latter will be finding it hard to cope with the former's absence.

The relationship between the two is reportedly one of Sherwood's favorite highlights of the season. "It's tough for the two of them to come together so I'm hoping in the future that we don't forget about the importance of the relationship because I really do think it's written even in the books as the most profound relationship within this world, this unbreakable bond that's for life," he told Entertainment Weekly."

This season, relationships and loyalties will be tested. With Jace running off with Valentine (Alan van Sprang), he will be separated from his parabatai Alec. Jace and Clary (Katherine McNamara) will be led to believe that they are siblings, while the Clave will be putting a lot of pressure on the New York Institute, following Jace's ordeal.

Furthermore, in the second season of the show, another relationship will be explored, one between Alec and Magnus (Harry Shum Jr.). The pair are from two different worlds, which shouldn't even be mingling on a romantic level. But as revealed by executive producer Michael Reisz in an interview with Paste magazine, the season will highlight how both characters will be growing individually and as a couple.

In addition, Reisz teased that a few instances that happened later in the books will occur this early in the show.

"Shadowhunters" season 2 airs Mondays at 8 p.m. EST on Freeform.