Summoned: Lenkov Journals by Athena Steller

Theo – Being summoned into an unknown realm and being separated from his mates is not how Theo thought his day would end. He knows nothing about the strange place except that he’s in danger and there’s no one to save him but himself.
Wylder – Assigning himself as Theo’s protector had been a brilliant idea until the little shifter disappeared right in front of his eyes. Now Wylder and his mates are racing against the clock to rescue Theo from certain danger.
Aleksander – In the entire time that Alek’s fathers were the chosen, no creature good or evil had ever managed to sperate them. Alek hadn’t even taken over from his fathers and he’s already lost the sweetest of his mates. Venturing into the fae realm is full of pitfalls but no one will stop Alek and his mates from finding Theo.
Dario – Having Theo snatched away from him is Dario’s worst nightmare. He heads into the fae realm with his mates with one purpose: Get Theo back. No matter what.
Mitch – Entering the fae realm changes everything for Mitch. His glamour is stripped away and he must trust his mates with his true form while searching for their youngest mate. Mitch is a trained fighter but until he knows who took his precious, he isn’t sure how to help.