Crumble undead is a powerful spell against skeletons. Also, if you're a member and have the salve amulet you get a 15% attack and strength bonus which makes killing these very easy.
Could do with gaining a few pounds.
Adamant kiteshield, Clue scroll (level-2), Mithril platelegs
Bones (100%), Coins (1-70), Games necklace (2), Antipoison potion, Attack potion, Agility potion (2), Fishing potion (1), Arrow shafts (12), Amulet mould, Pot lid, Flower pot, Bronze hatchet, Iron hatchet, Bronze arrow (5-10), Iron arrow (5-30), Mithril arrow (5), Adamant arrow (2), Iron dart(p) (2), Bronze spear, Iron spear, Bronze mace, Iron mace, Bronze med helm, Iron med helm, Steel med helm, Bronze platebody, Iron platebody, Steel platebody, Bronze platelegs, Iron platelegs, Steel platelegs, Leather body, Leather vambraces, Law rune, Air rune, Water rune, Mud rune, Grimy herbs, Gold Charm, Green Charm, Crimson Charm, Blue Charm, Strength potion, Staff of air