Many thanks for your prompt answer.
You correctly assume that... I'm a newbie so I am stuck despite your answer
This is what I did but it doesn't work (i.e., the text shows '?'). In the inventory of the character 1 I created a 'called by other action' action:
1) the action first executes the script (Execute script 'Values["nRecordedClues"].Int = #game.CurrentCharacter.Items')
2) the second line of the action is a Display text where the text is <v=nRecordedClues>
I am sure that I am doing something very silly (i.e., some errors in the syntax), but I can't find it...