where you start the first time round go down the ramp and turn left and head straight on
till you get to the spikey plants and gate then go in there

if you are in herbology right now,go up the stairs where you start and then go to the
ffront in that room, there will be a podium and an archway thing and the book will be in
it. just walk up to it. :)
i hope i wasnt too confusing..

anyways i dont know if this helps to perform the harbivicus spell when the little red dot
appears on top of a thingy you can do a spell on press b and hold it down hope dis works
evasrule!!