Grab the Evil Twin
From the RuneScape Wiki, the wiki for all things RuneScape
Grab the Evil Twin is a random event in which Molly teleports the player to an unknown place. She says her twin sister has been committing crimes around RuneScape, and Molly herself has been blamed for it. She cannot take revenge herself, so she chose a player to help her.
Molly's appearance changes randomly each time the event occurs, but her sister always looks exactly identical, including her clothes. Therefore, the player must memorise how Molly looks in order to recognise her sister (see Strategy below).
The player must then go to another room with a large pen containing several suspects. Only one suspect looks exactly like Molly. The player must operate a crane to grab the correct person, with only two chances to do so.
[edit] Strategy
An easy way to beat this event is to take a screen shot of Molly by pressing "Print Screen|SysRq" (on Windows), pasting it into Paint or a Word document and use that as a guide to pick out the evil twin. Alternatively, players can click on the door, and her head will appear in the message box. This can serve as a useful reminder.
The other way is just to remember Molly's hair colour (yellow, red or brown) and leg clothes type (long skirt, short skirt or trousers). Players do not need to memorise the colours of the clothes, or any other details.
There are only ever two girls with the same colour hair as Molly, and you have two chances. As the number of chances used makes no difference, it is common to pick randomly out of the correct hair colour girl.
[edit] Failing
If the player fails to grab the correct suspect, Molly will say: "Such incompetence! I should never have asked a baboon like you to do a complex task like this! Get out of my sight!" The player will respond with: "Err, sorry. I seem to have messed it up a little."
Molly will then teleport the player to a random area as punishment.
[edit] Succeeding
Players who win will receive a reward, and Molly will then teleport them back to their previous place.
The following list of rewards may be incomplete.

