In the last few episodes of Grimm a lot of new faces have been introduced.

First we met Theresa Trubel, known as “Trubel” (Jacqueline Toboni), the young Grimm Nick (David Giuntoli) has taken under his wing to teach her about their heritage; and last night another Grimm arrived in town!

In last night’s episode “The Inheritance”, a dying man came looking for Nick and revealed he too is a Grimm, and has one of the legendary keys that the Royal Family wants so badly.

Meanwhile, Sean Renard (Sasha Roiz) has become suspicious of Adalind’s (Claire Coffee) plans, and with good reason.

A sneak peek at next weeks season finale “Blond Ambition” shows Adalind casting a spell to take on the appearance of Juliette (Bitsie Tulloch), Nick’s partner, in a move that can only spell bad news for Nick.

Is this a plot for Adalind to retrieve Nick’s key so that she can turn it over to the Royal Family in return for her child?

The preview of next week’s episode also shows footage of Rosalee (Bree Turner) and Monroe’s (Silas Weir Mitchell) wedding, and Captain Renard apparently being shot in the chest.

Will the wedding go as planned, or will having a Grimm as the Best Man for a Wesen wedding lead to disaster? And is the Captain going to die?!

The season finale of  “Grimm” airs next Friday, May 16th at 9 P.M (EST) on NBC.

Check out the promo below for a sneak peek!