This takes place in the "Seasons of War" book in the Skulduggery Pleasant franchise. Added new characters but everything is still the same. (i know most of these peeps aren't actually in the Dead Men but who cares).

The Dead Men are a group of guys that fight for good. The Dead Men are made up of 8 different guys: Skulduggery Pleasant, Ghastly Bespoke, Anton Shudder, Dexter Vex, Saracen Rue, Hopeless, Erskine Ravel and Midnight Eclipse. Midnight and Ghastly are step brothers. The rest are very good friends. When they were 16, Skulduggery, Ghastly and Midnight would tell spooky stories in Midnight's treehouse. They all care for each other.