Clue box

Clue box
Released							25 September 2014 (Update)
Members							Yes
Quest item							No
Properties
Tradeable							Yes
Equipable							No
Stackable							No
Noteable							Yes
Options							Drop
Examine							Protects your clue scroll if you die.
Values
Value							10 coins
High alch							6 coins
Low alch							4 coins
Weight							0.005 kg
Grand Exchange
Exchange							154,791 coins (info)
Buy limit							50
Daily volume							137
View real-time prices
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Advanced data
Item ID							12789

A clue box allows a player to keep a single clue scroll or reward casket on death in the Wilderness when it is held in their inventory. It can be purchased from Justine's stuff for the Last Shopper Standing for 5 Last Man Standing points. A scroll/casket protected by a clue box is kept in addition to other items normally kept on death. However, a clue box is always lost on death, even if the box would normally be kept, and also even if it didn't protect a scroll/casket.

Only the bottom-right most scroll/casket is protected (carrying multiple clue boxes does not produce additional effects). The Items Kept on Death interface does not distinguish the scroll/casket a clue box would protect. However, the interface does indicate that the box would always be lost.

Clue boxes do not protect clues for Ultimate Ironman players.

It is recommended to avoid opening a reward casket in the Wilderness while holding a clue box, as the clue box will still be lost on death along with any non-protected items gained after the casket is opened.

Cost vs. risk assessment

To determine if a clue box is worth holding, its value must be weighed against the potential value of the scroll/casket it protects. If it is more valuable than the average expected value of the item it protects, it should not be taken. The table below compares the average expected value of each tier of reward casket against the Grand Exchange value of a clue box (154,791) accordingly.

Reward casket		Avg. value of loot	Profit if killed once	Recommended
	Hard	191,878.27	37,087.27	Yes
	Elite	427,953.96	273,162.96	Yes
	Master	936,478.18	781,687.18	Yes

This recommendation may not be reliable for players who can obtain new clue boxes more quickly than the scrolls/caskets they would protect, or players looking to fill slots in the Collection Log (such players may value the potential reward rolls more than the Grand Exchange value). Conversely, an iron player who struggles with the Last Man Standing minigame may never choose to use a clue box as the effort may be better spent on obtaining another clue scroll.

It also must be considered that the cost or effort put into obtaining a clue box itself may be better spent on equipment or supplies used to prevent death in the first place. Although rune and black dragonhide armour combined and high-healing foods may not guarantee a saved scroll/casket every time, they may be more cost or time efficient in the long run.