After you click the three statues if you continue going through the tower you will come to a room with an abomination mini-boss and some skeletons. Kill them ...
Congratulations on advancing to phase three - The Circle tower -
Summoning Sciences, Five Pages Four Mages, and The
245 The Notes of Arl Foreshadow, 324 Five Pages, Four Mages. 246 Irving's
These codices are called "Summoning Sciences" and "
There is also a statue that you can examine here this is actually part of the quest
You first need to find all six codex entries in the Tower of Magi: three on the first floor, two on the second, and one on the third. Then, in the Great Hall on the third ...
Next The Circle tower