'Shadowhunters' season 3 episode 17 spoilers reveal Clary and Jonathan come face to face, possibly for another showdown

This article contains spoilers for 'Shadowhunters' season 3 episode 16

We are still not over the face-off between Clary Fray and her evil twin Jonathan, that 'Shadowhunters' season 3 episode 16 ('Stay with Me') showed, and round two of that is already coming. As revealed by a teaser trailer of episode 17 ('Heavenly Fire'), Clary (Katherine McNamara) decides to go see Jonathan (Luke Baines) in the confined chamber she transported him to from the venue of the last episode's showdown.

Jonathan is entrapped right now, being held captive in the chambers of the shadowhunters' Institute, meaning the rest of the members are keen on using his newly resurrected self for possible interrogation purposes.

Not that any of it should bother Clary, but it's remarkable that even after being met with the evil, sinister, havoc-wreaking side of Jonathan that's always trying to tear the shadowhunters apart, she still decides to go see him in captivity. Things get even more interesting at this point; when we meet Jonathan in the episode's promo trailer, he is seen confined with metal chains, and a leather mask around his mouth.

In his own way, Jonathan resembles a lankier, taller Hannibal Lecter from the hit film 'Silence of the Lambs', but while the thought of the cannibal might be able to send shivers down anyone's spine, it doesn't deter Clary in the slightest.

Instead of keeping her distance and observing him through a thick glass barrier separating them, like the rest of the shadowhunters, Clary insists on going inside the captivity chamber and comes face to face with her evil twin, who wasn't holding back from trying to end her life just hours ago. The two come face to face again, and whatever exchange they have, is done through their eyes and expressions.

Yet, what really is concerning in this scenario - and as Clary's boyfriend Jace Herondale (Dominic Sherwood) points out - Jonathan is still very capable of exercising control over Clary's mind. Owing to the life-force rune the two have been connected with, he is capable of inflicting physical harm on Clary, by injuring himself.

So, Clary coming face to face, without a barrier between them - is not only a scary thought, but a legitimate fear considering Jonathan is still pretty livid about her repeated bouts of deceit. On the other hand, Clary is too pure on the inside to be able to bear the thought that somebody she knows and cares for, is going through suffering.

Granted, she isn't particularly tight with her evil twin, but the two still very much share a bond. The trailer doesn't show what their face-to-face meet culminates into, but if the two jump at each other's throats once again, it will be something much more devastating than a simple sibling rivalry.

'Shadowhunters' returns with episode 17 'Heavenly Fire' Monday, April 8, at 8/7c, only on Freeform.