The Uncanny X-Men #169 [Newsstand]-Very Good (3.5 – 5) 1st Team Appearance of The Morlocks

"Catacombs!" Part 1 of 2. Angel has been kidnaped by a fanatical group of mutants that live below the streets of Manhattan. Now the X-Men race against the clock to save the life of the former teammate, but are they ready for what they find in the tunnels of the Morlocks?
(NOTES: 1st appearance of Callisto;
1st team appearance of the Morlocks: Masque, Plague and Sunder;
Kitty Pryde becomes Ariel)