i did these quests at 54 attack(One Small Favor) and 34 range(Zogre Flesh Eaters) and found that if you take too long to kill the boss monsters in either of these quests they will "get bored" and vanish which means you will have to try and kill them all over again. it is possible to kill them at this level However you will need at least black brutal arrows and a few Relicym's balm(the disease lowers your range level) to kill Slash Bash Gadderhammer(a reward from In Aid Of The Myreque) works nicely against Slagilith if you also drink a super attack pot
