you cant idiot
In Counterfeit island, you chase him.
poptropica
For the Holmes chase, it is 2014.
chase
chase it around
the key card the thief you chase on scooters
go chase manny
kill him
You start to chase the bad guys.
Just follow him and don't lose him. If you want a better description get the Poptropica cheats app.
Chase it out of the cave/Mordreds lab and then set the mouse free.
You simply keep it until you need it. Then you use it when you chase Holmes.