This is the forum for helping you out if you're stuck or if you want to discuss the nitty gritty details of the dungeons within Mount Grimrock. Warning: forum contains spoilers!
You all probably know this but in case anyone else was as puzzled as me as to where their crossbow bolts,arrows and thrown weapons were vanishing to...
SpoilerShow
The Legionary Skeletons Shields just LOVE to hide your Ranged ammo and Thrown weapons when they die ,if you are missing a few arrows look under the shields!
Be careful when shooting (and killing) an enemy hovering/flying over a pit, your arrows will drop down the pit. Shooting arrows through a portal will also teleport them to the portal exit.